summaryrefslogtreecommitdiffstats
path: root/doc/developer/northbound/ppr-basic-test-topology.rst
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-09 13:16:35 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-09 13:16:35 +0000
commite2bbf175a2184bd76f6c54ccf8456babeb1a46fc (patch)
treef0b76550d6e6f500ada964a3a4ee933a45e5a6f1 /doc/developer/northbound/ppr-basic-test-topology.rst
parentInitial commit. (diff)
downloadfrr-e2bbf175a2184bd76f6c54ccf8456babeb1a46fc.tar.xz
frr-e2bbf175a2184bd76f6c54ccf8456babeb1a46fc.zip
Adding upstream version 9.1.upstream/9.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'doc/developer/northbound/ppr-basic-test-topology.rst')
-rw-r--r--doc/developer/northbound/ppr-basic-test-topology.rst1632
1 files changed, 1632 insertions, 0 deletions
diff --git a/doc/developer/northbound/ppr-basic-test-topology.rst b/doc/developer/northbound/ppr-basic-test-topology.rst
new file mode 100644
index 0000000..a680ed7
--- /dev/null
+++ b/doc/developer/northbound/ppr-basic-test-topology.rst
@@ -0,0 +1,1632 @@
+Table of Contents
+~~~~~~~~~~~~~~~~~
+
+- `Software <#software>`__
+- `Topology <#topology>`__
+- `Configuration <#configuration>`__
+
+ - `CLI <#configuration-cli>`__
+ - `YANG <#configuration-yang>`__
+
+- `Verification - Control Plane <#verification-cplane>`__
+- `Verification - Forwarding Plane <#verification-fplane>`__
+
+Software
+~~~~~~~~
+
+The FRR PPR implementation for IS-IS is available here:
+https://github.com/opensourcerouting/frr/tree/isisd-ppr
+
+Topology
+~~~~~~~~
+
+In this topology we have an IS-IS network consisting of 12 routers. CE1
+and CE2 are the consumer edges, connected to R11 and R14, respectively.
+Three hosts are connected to the CEs using only static routes.
+
+Router R11 advertises 6 PPR TLVs, which corresponds to three
+bi-directional GRE tunnels: \* **6000:1::1 <-> 6000:2::1:** {R11 - R21 -
+R22 - R23 - R14} (IPv6 Node Addresses only) \* **6000:1::2 <->
+6000:2::2:** {R11 - R21 - R32 - R41 - R33 - R23 - R14} (IPv6 Node and
+Interface Addresses) \* **6000:1::3 <-> 6000:2::3:** {R11 - R21 - R99 -
+R23 - R14} (misconfigured path)
+
+PBR rules are configured on R11 and R14 to route the traffic between
+Host 1 and Host 3 using the first PPR tunnel. Traffic between Host 2 and
+Host 3 uses the regular IS-IS shortest path.
+
+Additional information: \* Addresses in the 4000::/16 range refer to
+interface addresses, where the last hextet corresponds to the node ID.
+\* Addresses in the 5000::/16 range refer to loopback addresses, where
+the last hextet corresponds to the node ID. \* Addresses in the
+6000::/16 range refer to PPR-ID addresses.
+
+::
+
+ +-------+ +-------+ +-------+
+ | | | | | |
+ | HOST1 | | HOST2 | | HOST3 |
+ | | | | | |
+ +---+---+ +---+---+ +---+---+
+ | | |
+ |fd00:10:1::/64 | |
+ +-----+ +------+ fd00:20:1::/64|
+ | |fd00:10:2::/64 |
+ | | |
+ +-+--+--+ +---+---+
+ | | | |
+ | CE1 | | CE2 |
+ | | | |
+ +---+---+ +---+---+
+ | |
+ | |
+ |fd00:10:0::/64 fd00:20:0::/64|
+ | |
+ | |
+ +---+---+ +-------+ +-------+ +---+---+
+ | |4000:101::/64| |4000:102::/64| |4000:103::/64| |
+ | R11 +-------------+ R12 +-------------+ R13 +-------------+ R14 |
+ | | | | | | | |
+ +---+---+ +--+-+--+ +--+-+--+ +---+---+
+ | | | | | |
+ |4000:104::/64 | |4000:106::/64 | |4000:108::/64 |
+ +---------+ +--------+ +--------+ +--------+ +--------+ +---------+
+ | |4000:105::/64 | |4000:107::/64 | |4000:109::/64
+ | | | | | |
+ +--+-+--+ +--+-+--+ +--+-+--+
+ | |4000:110::/64| |4000:111::/64| |
+ | R21 +-------------+ R22 +-------------+ R23 |
+ | | | | | |
+ +--+-+--+ +--+-+--+ +--+-+--+
+ | | | | | |
+ | |4000:113::/64 | |4000:115::/64 | |4000:117::/64
+ +---------+ +--------+ +--------+ +--------+ +--------+ +---------+
+ |4000:112::/64 | |4000:114::/64 | |4000:116::/64 |
+ | | | | | |
+ +---+---+ +--+-+--+ +--+-+--+ +---+---+
+ | |4000:118::/64| |4000:119::/64| |4000:120::/64| |
+ | R31 +-------------+ R32 +-------------+ R33 +-------------+ R34 |
+ | | | | | | | |
+ +-------+ +---+---+ +---+---+ +-------+
+ | |
+ |4000:121::/64 |
+ +----------+----------+
+ |
+ |
+ +---+---+
+ | |
+ | R41 |
+ | |
+ +-------+
+
+Configuration
+~~~~~~~~~~~~~
+
+PPR TLV processing needs to be enabled on all IS-IS routers using the
+``ppr on`` command. The advertisements of all PPR TLVs is done by router
+R11.
+
+CLI configuration
+^^^^^^^^^^^^^^^^^
+
+.. code:: yaml
+
+ ---
+
+ routers:
+
+ host1:
+ links:
+ eth-ce1:
+ peer: [ce1, eth-host1]
+ frr:
+ zebra:
+ staticd:
+ config: |
+ interface eth-ce1
+ ipv6 address fd00:10:1::1/64
+ !
+ ipv6 route ::/0 fd00:10:1::100
+
+ host2:
+ links:
+ eth-ce1:
+ peer: [ce1, eth-host2]
+ frr:
+ zebra:
+ staticd:
+ config: |
+ interface eth-ce1
+ ipv6 address fd00:10:2::1/64
+ !
+ ipv6 route ::/0 fd00:10:2::100
+
+ host3:
+ links:
+ eth-ce2:
+ peer: [ce2, eth-host3]
+ frr:
+ zebra:
+ staticd:
+ config: |
+ interface eth-ce2
+ ipv6 address fd00:20:1::1/64
+ !
+ ipv6 route ::/0 fd00:20:1::100
+
+ ce1:
+ links:
+ eth-host1:
+ peer: [host1, eth-ce1]
+ eth-host2:
+ peer: [host2, eth-ce1]
+ eth-rt11:
+ peer: [rt11, eth-ce1]
+ frr:
+ zebra:
+ staticd:
+ config: |
+ interface eth-host1
+ ipv6 address fd00:10:1::100/64
+ !
+ interface eth-host2
+ ipv6 address fd00:10:2::100/64
+ !
+ interface eth-rt11
+ ipv6 address fd00:10:0::100/64
+ !
+ ipv6 route ::/0 fd00:10:0::11
+
+ ce2:
+ links:
+ eth-host3:
+ peer: [host3, eth-ce2]
+ eth-rt14:
+ peer: [rt14, eth-ce2]
+ frr:
+ zebra:
+ staticd:
+ config: |
+ interface eth-host3
+ ipv6 address fd00:20:1::100/64
+ !
+ interface eth-rt14
+ ipv6 address fd00:20:0::100/64
+ !
+ ipv6 route ::/0 fd00:20:0::14
+
+ rt11:
+ links:
+ lo-ppr:
+ eth-ce1:
+ peer: [ce1, eth-rt11]
+ eth-rt12:
+ peer: [rt12, eth-rt11]
+ eth-rt21:
+ peer: [rt21, eth-rt11]
+ shell: |
+ # GRE tunnel for preferred packets (PPR)
+ ip -6 tunnel add tun-ppr mode ip6gre remote 6000:2::1 local 6000:1::1 ttl 64
+ ip link set dev tun-ppr up
+ # PBR rules
+ ip -6 rule add from fd00:10:1::/64 to fd00:20:1::/64 iif eth-ce1 lookup 10000
+ ip -6 route add default dev tun-ppr table 10000
+ frr:
+ zebra:
+ staticd:
+ isisd:
+ config: |
+ interface lo-ppr
+ ipv6 address 6000:1::1/128
+ ipv6 address 6000:1::2/128
+ ipv6 address 6000:1::3/128
+ !
+ interface lo
+ ipv6 address 5000::11/128
+ ipv6 router isis 1
+ !
+ interface eth-ce1
+ ipv6 address fd00:10:0::11/64
+ !
+ interface eth-rt12
+ ipv6 address 4000:101::11/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt21
+ ipv6 address 4000:104::11/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ ipv6 route fd00:10::/32 fd00:10:0::100
+ !
+ ppr group VOIP
+ ppr ipv6 6000:1::1/128 prefix 5000::11/128 metric 50
+ pde ipv6-node 5000::14/128
+ pde ipv6-node 5000::23/128
+ pde ipv6-node 5000::22/128
+ pde ipv6-node 5000::21/128
+ pde ipv6-node 5000::11/128
+ !
+ ppr ipv6 6000:2::1/128 prefix 5000::14/128 metric 50
+ pde ipv6-node 5000::11/128
+ pde ipv6-node 5000::21/128
+ pde ipv6-node 5000::22/128
+ pde ipv6-node 5000::23/128
+ pde ipv6-node 5000::14/128
+ !
+ !
+ ppr group INTERFACE_PDES
+ ppr ipv6 6000:1::2/128 prefix 5000::11/128
+ pde ipv6-node 5000::14/128
+ pde ipv6-node 5000::23/128
+ pde ipv6-node 5000::33/128
+ pde ipv6-interface 4000:121::41/64
+ pde ipv6-node 5000::32/128
+ pde ipv6-interface 4000:113::21/64
+ pde ipv6-node 5000::11/128
+ !
+ ppr ipv6 6000:2::2/128 prefix 5000::14/128
+ pde ipv6-node 5000::11/128
+ pde ipv6-node 5000::21/128
+ pde ipv6-node 5000::32/128
+ pde ipv6-interface 4000:121::41/64
+ pde ipv6-node 5000::33/128
+ pde ipv6-interface 4000:116::23/64
+ pde ipv6-node 5000::14/128
+ !
+ !
+ ppr group BROKEN
+ ppr ipv6 6000:1::3/128 prefix 5000::11/128 metric 1500
+ pde ipv6-node 5000::14/128
+ pde ipv6-node 5000::23/128
+ ! non-existing node!!!
+ pde ipv6-node 5000::99/128
+ pde ipv6-node 5000::21/128
+ pde ipv6-node 5000::11/128
+ !
+ ppr ipv6 6000:2::3/128 prefix 5000::14/128 metric 1500
+ pde ipv6-node 5000::11/128
+ pde ipv6-node 5000::21/128
+ ! non-existing node!!!
+ pde ipv6-node 5000::99/128
+ pde ipv6-node 5000::23/128
+ pde ipv6-node 5000::14/128
+ !
+ !
+ router isis 1
+ net 49.0000.0000.0000.0011.00
+ is-type level-1
+ topology ipv6-unicast
+ ppr on
+ ppr advertise VOIP
+ ppr advertise INTERFACE_PDES
+ ppr advertise BROKEN
+ !
+
+ rt12:
+ links:
+ eth-rt11:
+ peer: [rt11, eth-rt12]
+ eth-rt13:
+ peer: [rt13, eth-rt12]
+ eth-rt21:
+ peer: [rt21, eth-rt12]
+ eth-rt22:
+ peer: [rt22, eth-rt12]
+ frr:
+ zebra:
+ isisd:
+ config: |
+ interface lo
+ ipv6 address 5000::12/128
+ ipv6 router isis 1
+ !
+ interface eth-rt11
+ ipv6 address 4000:101::12/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt13
+ ipv6 address 4000:102::12/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt21
+ ipv6 address 4000:105::12/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt22
+ ipv6 address 4000:106::12/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ router isis 1
+ net 49.0000.0000.0000.0012.00
+ is-type level-1
+ topology ipv6-unicast
+ ppr on
+ !
+
+ rt13:
+ links:
+ eth-rt12:
+ peer: [rt12, eth-rt13]
+ eth-rt14:
+ peer: [rt14, eth-rt13]
+ eth-rt22:
+ peer: [rt22, eth-rt13]
+ eth-rt23:
+ peer: [rt23, eth-rt13]
+ frr:
+ zebra:
+ isisd:
+ config: |
+ interface lo
+ ipv6 address 5000::13/128
+ ipv6 router isis 1
+ !
+ interface eth-rt12
+ ipv6 address 4000:102::13/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt14
+ ipv6 address 4000:103::13/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt22
+ ipv6 address 4000:107::13/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt23
+ ipv6 address 4000:108::13/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ router isis 1
+ net 49.0000.0000.0000.0013.00
+ is-type level-1
+ topology ipv6-unicast
+ ppr on
+ !
+
+ rt14:
+ links:
+ lo-ppr:
+ eth-ce2:
+ peer: [ce2, eth-rt14]
+ eth-rt13:
+ peer: [rt13, eth-rt14]
+ eth-rt23:
+ peer: [rt23, eth-rt14]
+ shell: |
+ # GRE tunnel for preferred packets (PPR)
+ ip -6 tunnel add tun-ppr mode ip6gre remote 6000:1::1 local 6000:2::1 ttl 64
+ ip link set dev tun-ppr up
+ # PBR rules
+ ip -6 rule add from fd00:20:1::/64 to fd00:10:1::/64 iif eth-ce2 lookup 10000
+ ip -6 route add default dev tun-ppr table 10000
+ frr:
+ zebra:
+ staticd:
+ isisd:
+ config: |
+ interface lo-ppr
+ ipv6 address 6000:2::1/128
+ ipv6 address 6000:2::2/128
+ ipv6 address 6000:2::3/128
+ !
+ interface lo
+ ipv6 address 5000::14/128
+ ipv6 router isis 1
+ !
+ interface eth-ce2
+ ipv6 address fd00:20:0::14/64
+ !
+ interface eth-rt13
+ ipv6 address 4000:103::14/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt23
+ ipv6 address 4000:109::14/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ ipv6 route fd00:20::/32 fd00:20:0::100
+ !
+ router isis 1
+ net 49.0000.0000.0000.0014.00
+ is-type level-1
+ topology ipv6-unicast
+ ppr on
+ !
+
+ rt21:
+ links:
+ eth-rt11:
+ peer: [rt11, eth-rt21]
+ eth-rt12:
+ peer: [rt12, eth-rt21]
+ eth-rt22:
+ peer: [rt22, eth-rt21]
+ eth-rt31:
+ peer: [rt31, eth-rt21]
+ eth-rt32:
+ peer: [rt32, eth-rt21]
+ frr:
+ zebra:
+ isisd:
+ config: |
+ interface lo
+ ipv6 address 5000::21/128
+ ipv6 router isis 1
+ !
+ interface eth-rt11
+ ipv6 address 4000:104::21/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt12
+ ipv6 address 4000:105::21/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt22
+ ipv6 address 4000:110::21/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt31
+ ipv6 address 4000:112::21/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt32
+ ipv6 address 4000:113::21/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ router isis 1
+ net 49.0000.0000.0000.0021.00
+ is-type level-1
+ topology ipv6-unicast
+ ppr on
+ !
+
+ rt22:
+ links:
+ eth-rt12:
+ peer: [rt12, eth-rt22]
+ eth-rt13:
+ peer: [rt13, eth-rt22]
+ eth-rt21:
+ peer: [rt21, eth-rt22]
+ eth-rt23:
+ peer: [rt23, eth-rt22]
+ eth-rt32:
+ peer: [rt32, eth-rt22]
+ eth-rt33:
+ peer: [rt33, eth-rt22]
+ frr:
+ zebra:
+ isisd:
+ config: |
+ interface lo
+ ipv6 address 5000::22/128
+ ipv6 router isis 1
+ !
+ interface eth-rt12
+ ipv6 address 4000:106::22/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt13
+ ipv6 address 4000:107::22/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt21
+ ipv6 address 4000:110::22/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt23
+ ipv6 address 4000:111::22/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt32
+ ipv6 address 4000:114::22/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt33
+ ipv6 address 4000:115::22/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ router isis 1
+ net 49.0000.0000.0000.0022.00
+ is-type level-1
+ topology ipv6-unicast
+ ppr on
+ !
+
+ rt23:
+ links:
+ eth-rt13:
+ peer: [rt13, eth-rt23]
+ eth-rt14:
+ peer: [rt14, eth-rt23]
+ eth-rt22:
+ peer: [rt22, eth-rt23]
+ eth-rt33:
+ peer: [rt33, eth-rt23]
+ eth-rt34:
+ peer: [rt34, eth-rt23]
+ frr:
+ zebra:
+ isisd:
+ config: |
+ interface lo
+ ipv6 address 5000::23/128
+ ipv6 router isis 1
+ !
+ interface eth-rt13
+ ipv6 address 4000:108::23/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt14
+ ipv6 address 4000:109::23/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt22
+ ipv6 address 4000:111::23/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt33
+ ipv6 address 4000:116::23/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt34
+ ipv6 address 4000:117::23/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ router isis 1
+ net 49.0000.0000.0000.0023.00
+ is-type level-1
+ topology ipv6-unicast
+ ppr on
+ !
+
+ rt31:
+ links:
+ eth-rt21:
+ peer: [rt21, eth-rt31]
+ eth-rt32:
+ peer: [rt32, eth-rt31]
+ frr:
+ zebra:
+ isisd:
+ config: |
+ interface lo
+ ipv6 address 5000::31/128
+ ipv6 router isis 1
+ !
+ interface eth-rt21
+ ipv6 address 4000:112::31/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt32
+ ipv6 address 4000:118::31/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ router isis 1
+ net 49.0000.0000.0000.0031.00
+ is-type level-1
+ topology ipv6-unicast
+ ppr on
+ !
+
+ rt32:
+ links:
+ eth-rt21:
+ peer: [rt21, eth-rt32]
+ eth-rt22:
+ peer: [rt22, eth-rt32]
+ eth-rt31:
+ peer: [rt31, eth-rt32]
+ eth-rt33:
+ peer: [rt33, eth-rt32]
+ eth-sw1:
+ peer: [sw1, eth-rt32]
+ frr:
+ zebra:
+ isisd:
+ config: |
+ interface lo
+ ipv6 address 5000::32/128
+ ipv6 router isis 1
+ !
+ interface eth-rt21
+ ipv6 address 4000:113::32/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt22
+ ipv6 address 4000:114::32/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt31
+ ipv6 address 4000:118::32/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt33
+ ipv6 address 4000:119::32/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-sw1
+ ipv6 address 4000:121::32/64
+ ipv6 router isis 1
+ isis hello-multiplier 3
+ !
+ router isis 1
+ net 49.0000.0000.0000.0032.00
+ is-type level-1
+ topology ipv6-unicast
+ ppr on
+ !
+
+ rt33:
+ links:
+ eth-rt22:
+ peer: [rt22, eth-rt33]
+ eth-rt23:
+ peer: [rt23, eth-rt33]
+ eth-rt32:
+ peer: [rt32, eth-rt33]
+ eth-rt34:
+ peer: [rt34, eth-rt33]
+ eth-sw1:
+ peer: [sw1, eth-rt33]
+ frr:
+ zebra:
+ isisd:
+ config: |
+ interface lo
+ ipv6 address 5000::33/128
+ ipv6 router isis 1
+ !
+ interface eth-rt22
+ ipv6 address 4000:115::33/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt23
+ ipv6 address 4000:116::33/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt32
+ ipv6 address 4000:119::33/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt34
+ ipv6 address 4000:120::33/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-sw1
+ ipv6 address 4000:121::33/64
+ ipv6 router isis 1
+ isis hello-multiplier 3
+ !
+ router isis 1
+ net 49.0000.0000.0000.0033.00
+ is-type level-1
+ topology ipv6-unicast
+ ppr on
+ !
+
+ rt34:
+ links:
+ eth-rt23:
+ peer: [rt23, eth-rt34]
+ eth-rt33:
+ peer: [rt33, eth-rt34]
+ frr:
+ zebra:
+ isisd:
+ config: |
+ interface lo
+ ipv6 address 5000::34/128
+ ipv6 router isis 1
+ !
+ interface eth-rt23
+ ipv6 address 4000:117::34/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ interface eth-rt33
+ ipv6 address 4000:120::34/64
+ ipv6 router isis 1
+ isis network point-to-point
+ isis hello-multiplier 3
+ !
+ router isis 1
+ net 49.0000.0000.0000.0034.00
+ is-type level-1
+ topology ipv6-unicast
+ ppr on
+ !
+
+ rt41:
+ links:
+ eth-sw1:
+ peer: [sw1, eth-rt41]
+ frr:
+ zebra:
+ isisd:
+ config: |
+ interface lo
+ ipv6 address 5000::41/128
+ ipv6 router isis 1
+ !
+ interface eth-sw1
+ ipv6 address 4000:121::41/64
+ ipv6 router isis 1
+ isis hello-multiplier 3
+ !
+ router isis 1
+ net 49.0000.0000.0000.0041.00
+ is-type level-1
+ topology ipv6-unicast
+ ppr on
+ !
+
+ switches:
+ sw1:
+ links:
+ eth-rt32:
+ peer: [rt32, eth-sw1]
+ eth-rt33:
+ peer: [rt33, eth-sw1]
+ eth-rt41:
+ peer: [rt41, eth-sw1]
+
+ frr:
+ base-config: |
+ hostname %(node)
+ password 1
+ log file %(logdir)/%(node).log
+ log commands
+ !
+ debug zebra rib
+ debug isis ppr
+ debug isis events
+ debug isis route-events
+ debug isis spf-events
+ debug isis lsp-gen
+ !
+
+YANG
+^^^^
+
+PPR can also be configured using NETCONF, RESTCONF and gRPC based on the
+following YANG models: \*
+`frr-ppr.yang <https://github.com/opensourcerouting/frr/blob/isisd-ppr/yang/frr-ppr.yang>`__
+\*
+`frr-isisd.yang <https://github.com/opensourcerouting/frr/blob/isisd-ppr/yang/frr-isisd.yang>`__
+
+As an example, here’s R11 configuration in the XML format:
+
+.. code:: xml
+
+ <lib xmlns="http://frrouting.org/yang/interface">
+ <interface>
+ <name>lo-ppr</name>
+ <vrf>default</vrf>
+ </interface>
+ <interface>
+ <name>lo</name>
+ <vrf>default</vrf>
+ <isis xmlns="http://frrouting.org/yang/isisd">
+ <area-tag>1</area-tag>
+ <ipv6-routing>true</ipv6-routing>
+ </isis>
+ </interface>
+ <interface>
+ <name>eth-ce1</name>
+ <vrf>default</vrf>
+ </interface>
+ <interface>
+ <name>eth-rt12</name>
+ <vrf>default</vrf>
+ <isis xmlns="http://frrouting.org/yang/isisd">
+ <area-tag>1</area-tag>
+ <ipv6-routing>true</ipv6-routing>
+ <hello>
+ <multiplier>
+ <level-1>3</level-1>
+ <level-2>3</level-2>
+ </multiplier>
+ </hello>
+ <network-type>point-to-point</network-type>
+ </isis>
+ </interface>
+ <interface>
+ <name>eth-rt21</name>
+ <vrf>default</vrf>
+ <isis xmlns="http://frrouting.org/yang/isisd">
+ <area-tag>1</area-tag>
+ <ipv6-routing>true</ipv6-routing>
+ <hello>
+ <multiplier>
+ <level-1>3</level-1>
+ <level-2>3</level-2>
+ </multiplier>
+ </hello>
+ <network-type>point-to-point</network-type>
+ </isis>
+ </interface>
+ </lib>
+ <ppr xmlns="http://frrouting.org/yang/ppr">
+ <group>
+ <name>VOIP</name>
+ <ipv6>
+ <ppr-id>6000:1::1/128</ppr-id>
+ <ppr-prefix>5000::11/128</ppr-prefix>
+ <ppr-pde>
+ <pde-id>5000::14/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::23/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::22/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::21/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::11/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <attributes>
+ <ppr-metric>50</ppr-metric>
+ </attributes>
+ </ipv6>
+ <ipv6>
+ <ppr-id>6000:2::1/128</ppr-id>
+ <ppr-prefix>5000::14/128</ppr-prefix>
+ <ppr-pde>
+ <pde-id>5000::11/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::21/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::22/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::23/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::14/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <attributes>
+ <ppr-metric>50</ppr-metric>
+ </attributes>
+ </ipv6>
+ </group>
+ <group>
+ <name>INTERFACE_PDES</name>
+ <ipv6>
+ <ppr-id>6000:1::2/128</ppr-id>
+ <ppr-prefix>5000::11/128</ppr-prefix>
+ <ppr-pde>
+ <pde-id>5000::14/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::23/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::33/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>4000:121::41/64</pde-id>
+ <pde-id-type>ipv6-interface</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::32/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>4000:113::21/64</pde-id>
+ <pde-id-type>ipv6-interface</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::11/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ </ipv6>
+ <ipv6>
+ <ppr-id>6000:2::2/128</ppr-id>
+ <ppr-prefix>5000::14/128</ppr-prefix>
+ <ppr-pde>
+ <pde-id>5000::11/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::21/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::32/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>4000:121::41/64</pde-id>
+ <pde-id-type>ipv6-interface</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::33/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>4000:116::23/64</pde-id>
+ <pde-id-type>ipv6-interface</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::14/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ </ipv6>
+ </group>
+ <group>
+ <name>BROKEN</name>
+ <ipv6>
+ <ppr-id>6000:1::3/128</ppr-id>
+ <ppr-prefix>5000::11/128</ppr-prefix>
+ <ppr-pde>
+ <pde-id>5000::14/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::23/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::99/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::21/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::11/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <attributes>
+ <ppr-metric>1500</ppr-metric>
+ </attributes>
+ </ipv6>
+ <ipv6>
+ <ppr-id>6000:2::3/128</ppr-id>
+ <ppr-prefix>5000::14/128</ppr-prefix>
+ <ppr-pde>
+ <pde-id>5000::11/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::21/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::99/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::23/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <ppr-pde>
+ <pde-id>5000::14/128</pde-id>
+ <pde-id-type>ipv6-node</pde-id-type>
+ <pde-type>topological</pde-type>
+ </ppr-pde>
+ <attributes>
+ <ppr-metric>1500</ppr-metric>
+ </attributes>
+ </ipv6>
+ </group>
+ </ppr>
+ <isis xmlns="http://frrouting.org/yang/isisd">
+ <instance>
+ <area-tag>1</area-tag>
+ <area-address>49.0000.0000.0000.0011.00</area-address>
+ <multi-topology>
+ <ipv6-unicast>
+ </ipv6-unicast>
+ </multi-topology>
+ <ppr>
+ <enable>true</enable>
+ <ppr-advertise>
+ <name>VOIP</name>
+ </ppr-advertise>
+ <ppr-advertise>
+ <name>INTERFACE_PDES</name>
+ </ppr-advertise>
+ <ppr-advertise>
+ <name>BROKEN</name>
+ </ppr-advertise>
+ </ppr>
+ </instance>
+ </isis>
+
+Verification - Control Plane
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Verify that R11 has flooded the PPR TLVs correctly to all IS-IS routers:
+
+::
+
+ # show isis database detail 0000.0000.0011
+ Area 1:
+ IS-IS Level-1 link-state database:
+ LSP ID PduLen SeqNumber Chksum Holdtime ATT/P/OL
+ debian.00-00 1233 0x00000009 0x7bd4 683 0/0/0
+ Protocols Supported: IPv4, IPv6
+ Area Address: 49.0000
+ MT Router Info: ipv4-unicast
+ MT Router Info: ipv6-unicast
+ Hostname: debian
+ MT Reachability: 0000.0000.0012.00 (Metric: 10) ipv6-unicast
+ MT Reachability: 0000.0000.0021.00 (Metric: 10) ipv6-unicast
+ MT IPv6 Reachability: 5000::11/128 (Metric: 10) ipv6-unicast
+ MT IPv6 Reachability: 4000:101::/64 (Metric: 10) ipv6-unicast
+ MT IPv6 Reachability: 4000:104::/64 (Metric: 10) ipv6-unicast
+ PPR: Fragment ID: 0, MT-ID: ipv4-unicast, Algorithm: SPF, F:0 D:0 A:0 U:1
+ PPR Prefix: 5000::11/128
+ ID: 6000:1::3/128 (Native IPv6)
+ PDE: 5000::14/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 5000::23/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 5000::99/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 5000::21/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 5000::11/128 (IPv6 Node Address), L:0 N:1 E:0
+ Metric: 1500
+ PPR: Fragment ID: 0, MT-ID: ipv4-unicast, Algorithm: SPF, F:0 D:0 A:0 U:1
+ PPR Prefix: 5000::14/128
+ ID: 6000:2::3/128 (Native IPv6)
+ PDE: 5000::11/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 5000::21/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 5000::99/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 5000::23/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 5000::14/128 (IPv6 Node Address), L:0 N:1 E:0
+ Metric: 1500
+ PPR: Fragment ID: 0, MT-ID: ipv4-unicast, Algorithm: SPF, F:0 D:0 A:0 U:1
+ PPR Prefix: 5000::11/128
+ ID: 6000:1::2/128 (Native IPv6)
+ PDE: 5000::14/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 5000::23/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 5000::33/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 4000:121::41 (IPv6 Interface Address), L:0 N:0 E:0
+ PDE: 5000::32/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 4000:113::21 (IPv6 Interface Address), L:0 N:0 E:0
+ PDE: 5000::11/128 (IPv6 Node Address), L:0 N:1 E:0
+ Metric: 0
+ PPR: Fragment ID: 0, MT-ID: ipv4-unicast, Algorithm: SPF, F:0 D:0 A:0 U:1
+ PPR Prefix: 5000::14/128
+ ID: 6000:2::2/128 (Native IPv6)
+ PDE: 5000::11/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 5000::21/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 5000::32/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 4000:121::41 (IPv6 Interface Address), L:0 N:0 E:0
+ PDE: 5000::33/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 4000:116::23 (IPv6 Interface Address), L:0 N:0 E:0
+ PDE: 5000::14/128 (IPv6 Node Address), L:0 N:1 E:0
+ Metric: 0
+ PPR: Fragment ID: 0, MT-ID: ipv4-unicast, Algorithm: SPF, F:0 D:0 A:0 U:1
+ PPR Prefix: 5000::11/128
+ ID: 6000:1::1/128 (Native IPv6)
+ PDE: 5000::14/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 5000::23/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 5000::22/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 5000::21/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 5000::11/128 (IPv6 Node Address), L:0 N:1 E:0
+ Metric: 50
+ PPR: Fragment ID: 0, MT-ID: ipv4-unicast, Algorithm: SPF, F:0 D:0 A:0 U:1
+ PPR Prefix: 5000::14/128
+ ID: 6000:2::1/128 (Native IPv6)
+ PDE: 5000::11/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 5000::21/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 5000::22/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 5000::23/128 (IPv6 Node Address), L:0 N:0 E:0
+ PDE: 5000::14/128 (IPv6 Node Address), L:0 N:1 E:0
+ Metric: 50
+
+The PPR TLVs can also be seen using a modified version of Wireshark as
+seen below:
+
+.. figure:: https://user-images.githubusercontent.com/931662/61582441-9551e500-ab01-11e9-8f6f-400ee3fba927.png
+ :alt: s2
+
+ s2
+
+Using the ``show isis ppr`` command, verify that all routers installed
+the PPR-IDs for the paths they are part of. Example:
+
+Router RT11
+^^^^^^^^^^^
+
+::
+
+ # show isis ppr
+ Area Level ID Prefix Metric Position Status Uptime
+ --------------------------------------------------------------------------------------------
+ 1 L1 6000:1::1/128 (Native IPv6) 5000::11/128 50 Tail-End - -
+ 1 L1 6000:1::2/128 (Native IPv6) 5000::11/128 0 Tail-End - -
+ 1 L1 6000:1::3/128 (Native IPv6) 5000::11/128 1500 Tail-End - -
+ 1 L1 6000:2::1/128 (Native IPv6) 5000::14/128 50 Head-End Up 00:45:41
+ 1 L1 6000:2::2/128 (Native IPv6) 5000::14/128 0 Head-End Up 00:45:41
+ 1 L1 6000:2::3/128 (Native IPv6) 5000::14/128 1500 Head-End Up 00:45:41
+
+ # show ipv6 route 6000::/16 longer-prefixes isis
+ Codes: K - kernel route, C - connected, S - static, R - RIPng,
+ O - OSPFv3, I - IS-IS, B - BGP, N - NHRP, T - Table,
+ v - VNC, V - VNC-Direct, A - Babel, D - SHARP, F - PBR,
+ f - OpenFabric,
+ > - selected route, * - FIB route, q - queued route, r - rejected route
+
+ I>* 6000:2::1/128 [115/50] via fe80::c2a:54ff:fe39:bff7, eth-rt21, 00:01:33
+ I>* 6000:2::2/128 [115/0] via fe80::c2a:54ff:fe39:bff7, eth-rt21, 00:01:33
+ I>* 6000:2::3/128 [115/1500] via fe80::c2a:54ff:fe39:bff7, eth-rt21, 00:01:33
+
+Router RT12
+'''''''''''
+
+::
+
+ # show isis ppr
+ Area Level ID Prefix Metric Position Status Uptime
+ ------------------------------------------------------------------------------------------
+ 1 L1 6000:1::1/128 (Native IPv6) 5000::11/128 50 Off-Path - -
+ 1 L1 6000:1::2/128 (Native IPv6) 5000::11/128 0 Off-Path - -
+ 1 L1 6000:1::3/128 (Native IPv6) 5000::11/128 1500 Off-Path - -
+ 1 L1 6000:2::1/128 (Native IPv6) 5000::14/128 50 Off-Path - -
+ 1 L1 6000:2::2/128 (Native IPv6) 5000::14/128 0 Off-Path - -
+ 1 L1 6000:2::3/128 (Native IPv6) 5000::14/128 1500 Off-Path - -
+
+ # show ipv6 route 6000::/16 longer-prefixes isis
+
+Router RT13
+'''''''''''
+
+::
+
+ # show isis ppr
+ Area Level ID Prefix Metric Position Status Uptime
+ ------------------------------------------------------------------------------------------
+ 1 L1 6000:1::1/128 (Native IPv6) 5000::11/128 50 Off-Path - -
+ 1 L1 6000:1::2/128 (Native IPv6) 5000::11/128 0 Off-Path - -
+ 1 L1 6000:1::3/128 (Native IPv6) 5000::11/128 1500 Off-Path - -
+ 1 L1 6000:2::1/128 (Native IPv6) 5000::14/128 50 Off-Path - -
+ 1 L1 6000:2::2/128 (Native IPv6) 5000::14/128 0 Off-Path - -
+ 1 L1 6000:2::3/128 (Native IPv6) 5000::14/128 1500 Off-Path - -
+
+ # show ipv6 route 6000::/16 longer-prefixes isis
+
+Router RT14
+'''''''''''
+
+::
+
+ # show isis ppr
+ Area Level ID Prefix Metric Position Status Uptime
+ --------------------------------------------------------------------------------------------
+ 1 L1 6000:1::1/128 (Native IPv6) 5000::11/128 50 Head-End Up 00:45:45
+ 1 L1 6000:1::2/128 (Native IPv6) 5000::11/128 0 Head-End Up 00:45:45
+ 1 L1 6000:1::3/128 (Native IPv6) 5000::11/128 1500 Head-End Up 00:45:45
+ 1 L1 6000:2::1/128 (Native IPv6) 5000::14/128 50 Tail-End - -
+ 1 L1 6000:2::2/128 (Native IPv6) 5000::14/128 0 Tail-End - -
+ 1 L1 6000:2::3/128 (Native IPv6) 5000::14/128 1500 Tail-End - -
+
+ # show ipv6 route 6000::/16 longer-prefixes isis
+ Codes: K - kernel route, C - connected, S - static, R - RIPng,
+ O - OSPFv3, I - IS-IS, B - BGP, N - NHRP, T - Table,
+ v - VNC, V - VNC-Direct, A - Babel, D - SHARP, F - PBR,
+ f - OpenFabric,
+ > - selected route, * - FIB route, q - queued route, r - rejected route
+
+ I>* 6000:1::1/128 [115/50] via fe80::58ea:78ff:fe00:92c1, eth-rt23, 00:01:36
+ I>* 6000:1::2/128 [115/0] via fe80::58ea:78ff:fe00:92c1, eth-rt23, 00:01:36
+ I>* 6000:1::3/128 [115/1500] via fe80::58ea:78ff:fe00:92c1, eth-rt23, 00:01:36
+
+Router RT21
+'''''''''''
+
+::
+
+ # show isis ppr
+ Area Level ID Prefix Metric Position Status Uptime
+ ---------------------------------------------------------------------------------------------
+ 1 L1 6000:1::1/128 (Native IPv6) 5000::11/128 50 Mid-Point Up 00:45:46
+ 1 L1 6000:1::2/128 (Native IPv6) 5000::11/128 0 Mid-Point Up 00:45:46
+ 1 L1 6000:1::3/128 (Native IPv6) 5000::11/128 1500 Mid-Point Up 00:45:46
+ 1 L1 6000:2::1/128 (Native IPv6) 5000::14/128 50 Mid-Point Up 00:45:46
+ 1 L1 6000:2::2/128 (Native IPv6) 5000::14/128 0 Mid-Point Up 00:45:46
+ 1 L1 6000:2::3/128 (Native IPv6) 5000::14/128 1500 Mid-Point Down -
+
+ # show isis ppr id ipv6 6000:2::3/128 detail
+ Area 1:
+ PPR-ID: 6000:2::3/128 (Native IPv6)
+ PPR-Prefix: 5000::14/128
+ PDEs:
+ 5000::11/128 (IPv6 Node Address)
+ 5000::21/128 (IPv6 Node Address) [LOCAL]
+ 5000::99/128 (IPv6 Node Address) [NEXT]
+ 5000::23/128 (IPv6 Node Address)
+ 5000::14/128 (IPv6 Node Address)
+ Attributes:
+ Metric: 1500
+ Position: Mid-Point
+ Originator: 0000.0000.0011
+ Level: L1
+ Algorithm: 1
+ MT-ID: ipv4-unicast
+ Status: Down: PDE is unreachable
+ Last change: 00:00:37
+
+ # show ipv6 route 6000::/16 longer-prefixes isis
+ Codes: K - kernel route, C - connected, S - static, R - RIPng,
+ O - OSPFv3, I - IS-IS, B - BGP, N - NHRP, T - Table,
+ v - VNC, V - VNC-Direct, A - Babel, D - SHARP, F - PBR,
+ f - OpenFabric,
+ > - selected route, * - FIB route, q - queued route, r - rejected route
+
+ I>* 6000:1::1/128 [115/50] via fe80::142e:79ff:feeb:cffc, eth-rt11, 00:01:38
+ I>* 6000:1::2/128 [115/0] via fe80::142e:79ff:feeb:cffc, eth-rt11, 00:01:38
+ I>* 6000:1::3/128 [115/1500] via fe80::142e:79ff:feeb:cffc, eth-rt11, 00:01:38
+ I>* 6000:2::1/128 [115/50] via fe80::c88e:7fff:fe5f:a08d, eth-rt22, 00:01:38
+ I>* 6000:2::2/128 [115/0] via fe80::8b2:9eff:fe98:f66a, eth-rt32, 00:01:38
+
+Router RT22
+'''''''''''
+
+::
+
+ # show isis ppr
+ Area Level ID Prefix Metric Position Status Uptime
+ ---------------------------------------------------------------------------------------------
+ 1 L1 6000:1::1/128 (Native IPv6) 5000::11/128 50 Mid-Point Up 00:45:47
+ 1 L1 6000:1::2/128 (Native IPv6) 5000::11/128 0 Off-Path - -
+ 1 L1 6000:1::3/128 (Native IPv6) 5000::11/128 1500 Off-Path - -
+ 1 L1 6000:2::1/128 (Native IPv6) 5000::14/128 50 Mid-Point Up 00:45:47
+ 1 L1 6000:2::2/128 (Native IPv6) 5000::14/128 0 Off-Path - -
+ 1 L1 6000:2::3/128 (Native IPv6) 5000::14/128 1500 Off-Path - -
+
+ # show ipv6 route 6000::/16 longer-prefixes isis
+ Codes: K - kernel route, C - connected, S - static, R - RIPng,
+ O - OSPFv3, I - IS-IS, B - BGP, N - NHRP, T - Table,
+ v - VNC, V - VNC-Direct, A - Babel, D - SHARP, F - PBR,
+ f - OpenFabric,
+ > - selected route, * - FIB route, q - queued route, r - rejected route
+
+ I>* 6000:1::1/128 [115/50] via fe80::2cb5:edff:fe60:29b1, eth-rt21, 00:01:38
+ I>* 6000:2::1/128 [115/50] via fe80::e8d9:63ff:fea3:177b, eth-rt23, 00:01:38
+
+Router RT23
+'''''''''''
+
+::
+
+ # show isis ppr
+ Area Level ID Prefix Metric Position Status Uptime
+ ---------------------------------------------------------------------------------------------
+ 1 L1 6000:1::1/128 (Native IPv6) 5000::11/128 50 Mid-Point Up 00:45:49
+ 1 L1 6000:1::2/128 (Native IPv6) 5000::11/128 0 Mid-Point Up 00:45:49
+ 1 L1 6000:1::3/128 (Native IPv6) 5000::11/128 1500 Mid-Point Down -
+ 1 L1 6000:2::1/128 (Native IPv6) 5000::14/128 50 Mid-Point Up 00:45:49
+ 1 L1 6000:2::2/128 (Native IPv6) 5000::14/128 0 Mid-Point Up 00:45:49
+ 1 L1 6000:2::3/128 (Native IPv6) 5000::14/128 1500 Mid-Point Up 00:45:49
+
+ # show isis ppr id ipv6 6000:1::3/128 detail
+ Area 1:
+ PPR-ID: 6000:1::3/128 (Native IPv6)
+ PPR-Prefix: 5000::11/128
+ PDEs:
+ 5000::14/128 (IPv6 Node Address)
+ 5000::23/128 (IPv6 Node Address) [LOCAL]
+ 5000::99/128 (IPv6 Node Address) [NEXT]
+ 5000::21/128 (IPv6 Node Address)
+ 5000::11/128 (IPv6 Node Address)
+ Attributes:
+ Metric: 1500
+ Position: Mid-Point
+ Originator: 0000.0000.0011
+ Level: L1
+ Algorithm: 1
+ MT-ID: ipv4-unicast
+ Status: Down: PDE is unreachable
+ Last change: 00:02:50
+
+ # show ipv6 route 6000::/16 longer-prefixes isis
+ Codes: K - kernel route, C - connected, S - static, R - RIPng,
+ O - OSPFv3, I - IS-IS, B - BGP, N - NHRP, T - Table,
+ v - VNC, V - VNC-Direct, A - Babel, D - SHARP, F - PBR,
+ f - OpenFabric,
+ > - selected route, * - FIB route, q - queued route, r - rejected route
+
+ I>* 6000:1::1/128 [115/50] via fe80::d09f:1bff:fe31:e9c9, eth-rt22, 00:01:40
+ I>* 6000:1::2/128 [115/0] via fe80::c0c3:b3ff:fe9f:b5d3, eth-rt33, 00:01:40
+ I>* 6000:2::1/128 [115/50] via fe80::f40a:66ff:fefc:5c32, eth-rt14, 00:01:40
+ I>* 6000:2::2/128 [115/0] via fe80::f40a:66ff:fefc:5c32, eth-rt14, 00:01:40
+ I>* 6000:2::3/128 [115/1500] via fe80::f40a:66ff:fefc:5c32, eth-rt14, 00:01:40
+
+Router RT31
+'''''''''''
+
+::
+
+ # show isis ppr
+ Area Level ID Prefix Metric Position Status Uptime
+ ------------------------------------------------------------------------------------------
+ 1 L1 6000:1::1/128 (Native IPv6) 5000::11/128 50 Off-Path - -
+ 1 L1 6000:1::2/128 (Native IPv6) 5000::11/128 0 Off-Path - -
+ 1 L1 6000:1::3/128 (Native IPv6) 5000::11/128 1500 Off-Path - -
+ 1 L1 6000:2::1/128 (Native IPv6) 5000::14/128 50 Off-Path - -
+ 1 L1 6000:2::2/128 (Native IPv6) 5000::14/128 0 Off-Path - -
+ 1 L1 6000:2::3/128 (Native IPv6) 5000::14/128 1500 Off-Path - -
+
+ # show ipv6 route 6000::/16 longer-prefixes isis
+
+Router RT32
+'''''''''''
+
+::
+
+ # show isis ppr
+ Area Level ID Prefix Metric Position Status Uptime
+ ---------------------------------------------------------------------------------------------
+ 1 L1 6000:1::1/128 (Native IPv6) 5000::11/128 50 Off-Path - -
+ 1 L1 6000:1::2/128 (Native IPv6) 5000::11/128 0 Mid-Point Up 00:45:51
+ 1 L1 6000:1::3/128 (Native IPv6) 5000::11/128 1500 Off-Path - -
+ 1 L1 6000:2::1/128 (Native IPv6) 5000::14/128 50 Off-Path - -
+ 1 L1 6000:2::2/128 (Native IPv6) 5000::14/128 0 Mid-Point Up 00:45:51
+ 1 L1 6000:2::3/128 (Native IPv6) 5000::14/128 1500 Off-Path - -
+
+ # show ipv6 route 6000::/16 longer-prefixes isis
+ Codes: K - kernel route, C - connected, S - static, R - RIPng,
+ O - OSPFv3, I - IS-IS, B - BGP, N - NHRP, T - Table,
+ v - VNC, V - VNC-Direct, A - Babel, D - SHARP, F - PBR,
+ f - OpenFabric,
+ > - selected route, * - FIB route, q - queued route, r - rejected route
+
+ I>* 6000:1::2/128 [115/0] via 4000:113::21, eth-rt21, 00:01:42
+ I>* 6000:2::2/128 [115/0] via 4000:121::41, eth-sw1, 00:01:42
+
+Router RT33
+'''''''''''
+
+::
+
+ # show isis ppr
+ Area Level ID Prefix Metric Position Status Uptime
+ ---------------------------------------------------------------------------------------------
+ 1 L1 6000:1::1/128 (Native IPv6) 5000::11/128 50 Off-Path - -
+ 1 L1 6000:1::2/128 (Native IPv6) 5000::11/128 0 Mid-Point Up 00:45:52
+ 1 L1 6000:1::3/128 (Native IPv6) 5000::11/128 1500 Off-Path - -
+ 1 L1 6000:2::1/128 (Native IPv6) 5000::14/128 50 Off-Path - -
+ 1 L1 6000:2::2/128 (Native IPv6) 5000::14/128 0 Mid-Point Up 00:45:52
+ 1 L1 6000:2::3/128 (Native IPv6) 5000::14/128 1500 Off-Path - -
+
+ # show ipv6 route 6000::/16 longer-prefixes isis
+ Codes: K - kernel route, C - connected, S - static, R - RIPng,
+ O - OSPFv3, I - IS-IS, B - BGP, N - NHRP, T - Table,
+ v - VNC, V - VNC-Direct, A - Babel, D - SHARP, F - PBR,
+ f - OpenFabric,
+ > - selected route, * - FIB route, q - queued route, r - rejected route
+
+ I>* 6000:1::2/128 [115/0] via 4000:121::41, eth-sw1, 00:01:43
+ I>* 6000:2::2/128 [115/0] via 4000:116::23, eth-rt23, 00:01:43
+
+Router RT34
+'''''''''''
+
+::
+
+ # show isis ppr
+ Area Level ID Prefix Metric Position Status Uptime
+ ------------------------------------------------------------------------------------------
+ 1 L1 6000:1::1/128 (Native IPv6) 5000::11/128 50 Off-Path - -
+ 1 L1 6000:1::2/128 (Native IPv6) 5000::11/128 0 Off-Path - -
+ 1 L1 6000:1::3/128 (Native IPv6) 5000::11/128 1500 Off-Path - -
+ 1 L1 6000:2::1/128 (Native IPv6) 5000::14/128 50 Off-Path - -
+ 1 L1 6000:2::2/128 (Native IPv6) 5000::14/128 0 Off-Path - -
+ 1 L1 6000:2::3/128 (Native IPv6) 5000::14/128 1500 Off-Path - -
+
+ # show ipv6 route 6000::/16 longer-prefixes isis
+
+Router RT41
+'''''''''''
+
+::
+
+ # show isis ppr
+ Area Level ID Prefix Metric Position Status Uptime
+ ---------------------------------------------------------------------------------------------
+ 1 L1 6000:1::1/128 (Native IPv6) 5000::11/128 50 Off-Path - -
+ 1 L1 6000:1::2/128 (Native IPv6) 5000::11/128 0 Mid-Point Up 00:45:55
+ 1 L1 6000:1::3/128 (Native IPv6) 5000::11/128 1500 Off-Path - -
+ 1 L1 6000:2::1/128 (Native IPv6) 5000::14/128 50 Off-Path - -
+ 1 L1 6000:2::2/128 (Native IPv6) 5000::14/128 0 Mid-Point Up 00:45:55
+ 1 L1 6000:2::3/128 (Native IPv6) 5000::14/128 1500 Off-Path - -
+
+ # show ipv6 route 6000::/16 longer-prefixes isis
+ Codes: K - kernel route, C - connected, S - static, R - RIPng,
+ O - OSPFv3, I - IS-IS, B - BGP, N - NHRP, T - Table,
+ v - VNC, V - VNC-Direct, A - Babel, D - SHARP, F - PBR,
+ f - OpenFabric,
+ > - selected route, * - FIB route, q - queued route, r - rejected route
+
+ I>* 6000:1::2/128 [115/0] via fe80::b4b9:60ff:feee:3c73, eth-sw1, 00:01:46
+ I>* 6000:2::2/128 [115/0] via fe80::bc2a:d9ff:fe65:97f2, eth-sw1, 00:01:46
+
+As it can be seen by the output of ``show isis ppr id ipv6 ... detail``,
+routers R21 and R23 couldn’t install the third PPR path because of an
+unreachable PDE (configuration error).
+
+Verification - Forwarding Plane
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+On Router R11, use the ``traceroute`` tool to ensure that the PPR paths
+were installed correctly in the network:
+
+::
+
+ root@rt11:~# traceroute 6000:2::1
+ traceroute to 6000:2::1 (6000:2::1), 30 hops max, 80 byte packets
+ 1 4000:104::21 (4000:104::21) 0.612 ms 0.221 ms 0.241 ms
+ 2 4000:110::22 (4000:110::22) 0.257 ms 0.113 ms 0.105 ms
+ 3 4000:111::23 (4000:111::23) 0.257 ms 0.151 ms 0.098 ms
+ 4 6000:2::1 (6000:2::1) 0.346 ms 0.139 ms 0.100 ms
+ root@rt11:~#
+ root@rt11:~# traceroute 6000:2::2
+ traceroute to 6000:2::2 (6000:2::2), 30 hops max, 80 byte packets
+ 1 4000:104::21 (4000:104::21) 4.383 ms 4.148 ms 0.044 ms
+ 2 4000:113::32 (4000:113::32) 0.272 ms 0.065 ms 0.064 ms
+ 3 4000:121::41 (4000:121::41) 0.263 ms 0.101 ms 0.086 ms
+ 4 4000:115::33 (4000:115::33) 0.351 ms 4000:119::33 (4000:119::33) 0.249 ms 4000:115::33 (4000:115::33) 0.153 ms
+ 5 4000:111::23 (4000:111::23) 0.232 ms 0.293 ms 0.131 ms
+ 6 6000:2::2 (6000:2::2) 0.184 ms 0.212 ms 0.140 ms
+ root@rt11:~#
+ root@rt11:~# traceroute 6000:2::3
+ traceroute to 6000:2::3 (6000:2::3), 30 hops max, 80 byte packets
+ 1 4000:104::21 (4000:104::21) 1.537 ms !N 1.347 ms !N 1.075 ms !N
+
+The failure on the third traceroute is expected since the 6000:2::3
+PPR-ID is misconfigured.
+
+Now ping Host 3 from Host 1 and use tcpdump or wireshark to verify that
+the ICMP packets are being tunneled using GRE and following the {R11 -
+R21 - R22 - R23 - R14} path. Here’s a wireshark capture between R11 and
+R21:
+
+.. figure:: https://user-images.githubusercontent.com/931662/61582398-d4cc0180-ab00-11e9-83a8-d219f98010b9.png
+ :alt: s1
+
+ s1
+
+Using ``traceroute`` it’s also possible to see that the ICMP packets are
+being tunneled through the IS-IS network:
+
+::
+
+ root@host1:~# traceroute fd00:20:1::1 -s fd00:10:1::1
+ traceroute to fd00:20:1::1 (fd00:20:1::1), 30 hops max, 80 byte packets
+ 1 fd00:10:1::100 (fd00:10:1::100) 0.354 ms 0.092 ms 0.031 ms
+ 2 fd00:10::11 (fd00:10::11) 0.125 ms 0.022 ms 0.026 ms
+ 3 * * *
+ 4 * * *
+ 5 fd00:20:1::1 (fd00:20:1::1) 0.235 ms 0.106 ms 0.091 ms
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 14:12:36 +0000