Adding upstream version 9.1.upstream/9.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1141 insertions, 0 deletions

diff --git a/isisd/isis_vty_fabricd.c b/isisd/isis_vty_fabricd.c
new file mode 100644
index 0000000..0d25f66
--- /dev/null
+++ b/isisd/isis_vty_fabricd.c
@@ -0,0 +1,1141 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * IS-IS Rout(e)ing protocol - isis_vty_fabricd.c
+ *
+ * This file contains the CLI that is specific to OpenFabric
+ *
+ * Copyright (C) 2018        Christian Franke, for NetDEF, Inc.
+ */
+#include <zebra.h>
+
+#include "command.h"
+
+#include "lib/bfd.h"
+#include "isisd/isis_bfd.h"
+#include "isisd/isisd.h"
+#include "isisd/fabricd.h"
+#include "isisd/isis_tlvs.h"
+#include "isisd/isis_misc.h"
+#include "isisd/isis_lsp.h"
+#include "isisd/isis_csm.h"
+#include "isisd/isis_circuit.h"
+#include "lib/spf_backoff.h"
+#include "isisd/isis_mt.h"
+
+static struct isis_circuit *isis_circuit_lookup(struct vty *vty)
+{
+	struct interface *ifp = VTY_GET_CONTEXT(interface);
+	struct isis_circuit *circuit;
+
+	if (!ifp) {
+		vty_out(vty, "Invalid interface \n");
+		return NULL;
+	}
+
+	circuit = circuit_scan_by_ifp(ifp);
+	if (!circuit) {
+		vty_out(vty, "ISIS is not enabled on circuit %s\n", ifp->name);
+		return NULL;
+	}
+
+	return circuit;
+}
+
+DEFUN (fabric_tier,
+       fabric_tier_cmd,
+       "fabric-tier (0-14)",
+       "Statically configure the tier to advertise\n"
+       "Tier to advertise\n")
+{
+	VTY_DECLVAR_CONTEXT(isis_area, area);
+
+	uint8_t tier = atoi(argv[1]->arg);
+
+	fabricd_configure_tier(area, tier);
+	return CMD_SUCCESS;
+}
+
+DEFUN (no_fabric_tier,
+       no_fabric_tier_cmd,
+       "no fabric-tier [(0-14)]",
+       NO_STR
+       "Statically configure the tier to advertise\n"
+       "Tier to advertise\n")
+{
+	VTY_DECLVAR_CONTEXT(isis_area, area);
+
+	fabricd_configure_tier(area, ISIS_TIER_UNDEFINED);
+	return CMD_SUCCESS;
+}
+
+DEFUN (triggered_csnp,
+       triggered_csnp_cmd,
+       "triggered-csnp-delay (100-10000) [always]",
+       "Configure the delay for triggered CSNPs\n"
+       "Delay in milliseconds\n"
+       "Trigger CSNP for all LSPs, not only circuit-scoped\n")
+{
+	VTY_DECLVAR_CONTEXT(isis_area, area);
+
+	int csnp_delay = atoi(argv[1]->arg);
+	bool always_send_csnp = (argc == 3);
+
+	fabricd_configure_triggered_csnp(area, csnp_delay, always_send_csnp);
+	return CMD_SUCCESS;
+}
+
+DEFUN (no_triggered_csnp,
+       no_triggered_csnp_cmd,
+       "no triggered-csnp-delay [(100-10000) [always]]",
+       NO_STR
+       "Configure the delay for triggered CSNPs\n"
+       "Delay in milliseconds\n"
+       "Trigger CSNP for all LSPs, not only circuit-scoped\n")
+{
+	VTY_DECLVAR_CONTEXT(isis_area, area);
+
+	fabricd_configure_triggered_csnp(area, FABRICD_DEFAULT_CSNP_DELAY,
+					 false);
+	return CMD_SUCCESS;
+}
+
+static void lsp_print_flooding(struct vty *vty, struct isis_lsp *lsp,
+			       struct isis *isis)
+{
+	char lspid[255];
+	char buf[MONOTIME_STRLEN];
+
+	lspid_print(lsp->hdr.lsp_id, lspid, sizeof(lspid), true, true, isis);
+	vty_out(vty, "Flooding information for %s\n", lspid);
+
+	if (!lsp->flooding_neighbors[TX_LSP_NORMAL]) {
+		vty_out(vty, "    Never received.\n");
+		return;
+	}
+
+	vty_out(vty, "    Last received on: %s (",
+		lsp->flooding_interface ?
+		lsp->flooding_interface : "(null)");
+
+	time_t uptime = time(NULL) - lsp->flooding_time;
+
+	frrtime_to_interval(uptime, buf, sizeof(buf));
+
+	vty_out(vty, "%s ago)\n", buf);
+
+	if (lsp->flooding_circuit_scoped) {
+		vty_out(vty, "    Received as circuit-scoped LSP, so not flooded.\n");
+		return;
+	}
+
+	for (enum isis_tx_type type = TX_LSP_NORMAL;
+	     type <= TX_LSP_CIRCUIT_SCOPED; type++) {
+		struct listnode *node;
+		uint8_t *neighbor_id;
+
+		vty_out(vty, "    %s:\n",
+			(type == TX_LSP_NORMAL) ? "RF" : "DNR");
+		for (ALL_LIST_ELEMENTS_RO(lsp->flooding_neighbors[type],
+					  node, neighbor_id)) {
+			vty_out(vty, "        %s\n",
+				print_sys_hostname(neighbor_id));
+		}
+	}
+}
+
+DEFUN (show_lsp_flooding,
+       show_lsp_flooding_cmd,
+       "show openfabric flooding [WORD]",
+       SHOW_STR
+       PROTO_HELP
+       "Flooding information\n"
+       "LSP ID\n")
+{
+	const char *lspid = NULL;
+
+	if (argc == 4)
+		lspid = argv[3]->arg;
+
+	struct listnode *node;
+	struct isis_area *area;
+	struct isis *isis = NULL;
+
+	isis = isis_lookup_by_vrfid(VRF_DEFAULT);
+
+	if (isis == NULL) {
+		vty_out(vty, "IS-IS Routing Process not enabled\n");
+		return CMD_SUCCESS;
+	}
+
+	for (ALL_LIST_ELEMENTS_RO(isis->area_list, node, area)) {
+		struct lspdb_head *head = &area->lspdb[ISIS_LEVEL2 - 1];
+		struct isis_lsp *lsp;
+
+		vty_out(vty, "Area %s:\n",
+			area->area_tag ? area->area_tag : "null");
+		if (lspid) {
+			lsp = lsp_for_sysid(head, lspid, isis);
+			if (lsp)
+				lsp_print_flooding(vty, lsp, isis);
+			continue;
+		}
+		frr_each (lspdb, head, lsp) {
+			lsp_print_flooding(vty, lsp, isis);
+			vty_out(vty, "\n");
+		}
+	}
+
+	return CMD_SUCCESS;
+}
+
+DEFUN (ip_router_isis,
+       ip_router_isis_cmd,
+       "ip router " PROTO_NAME " WORD",
+       "Interface Internet Protocol config commands\n"
+       "IP router interface commands\n"
+       PROTO_HELP
+       "Routing process tag\n")
+{
+	int idx_afi = 0;
+	int idx_word = 3;
+	VTY_DECLVAR_CONTEXT(interface, ifp);
+	struct isis_circuit *circuit;
+	struct isis_area *area;
+	const char *af = argv[idx_afi]->arg;
+	const char *area_tag = argv[idx_word]->arg;
+
+	/* Prevent more than one area per circuit */
+	circuit = circuit_scan_by_ifp(ifp);
+	if (circuit && circuit->area) {
+		if (strcmp(circuit->area->area_tag, area_tag)) {
+			vty_out(vty, "ISIS circuit is already defined on %s\n",
+				circuit->area->area_tag);
+			return CMD_ERR_NOTHING_TODO;
+		}
+	}
+
+	area = isis_area_lookup(area_tag, VRF_DEFAULT);
+	if (!area)
+		isis_area_create(area_tag, VRF_DEFAULT_NAME);
+
+	if (!circuit) {
+		circuit = isis_circuit_new(ifp, area_tag);
+
+		if (circuit->state != C_STATE_CONF
+		    && circuit->state != C_STATE_UP) {
+			vty_out(vty,
+				"Couldn't bring up interface, please check log.\n");
+			return CMD_WARNING_CONFIG_FAILED;
+		}
+	}
+
+	bool ip = circuit->ip_router, ipv6 = circuit->ipv6_router;
+	if (af[2] != '\0')
+		ipv6 = true;
+	else
+		ip = true;
+
+	isis_circuit_af_set(circuit, ip, ipv6);
+	return CMD_SUCCESS;
+}
+
+DEFUN (ip6_router_isis,
+       ip6_router_isis_cmd,
+       "ipv6 router " PROTO_NAME " WORD",
+       "Interface Internet Protocol config commands\n"
+       "IP router interface commands\n"
+       PROTO_HELP
+       "Routing process tag\n")
+{
+	return ip_router_isis(self, vty, argc, argv);
+}
+
+DEFUN (no_ip_router_isis,
+       no_ip_router_isis_cmd,
+       "no <ip|ipv6> router " PROTO_NAME " WORD",
+       NO_STR
+       "Interface Internet Protocol config commands\n"
+       "IP router interface commands\n"
+       "IP router interface commands\n"
+       PROTO_HELP
+       "Routing process tag\n")
+{
+	int idx_afi = 1;
+	int idx_word = 4;
+	VTY_DECLVAR_CONTEXT(interface, ifp);
+	struct isis_area *area;
+	struct isis_circuit *circuit;
+	const char *af = argv[idx_afi]->arg;
+	const char *area_tag = argv[idx_word]->arg;
+
+	area = isis_area_lookup(area_tag, VRF_DEFAULT);
+	if (!area) {
+		vty_out(vty, "Can't find ISIS instance %s\n",
+			area_tag);
+		return CMD_ERR_NO_MATCH;
+	}
+
+	circuit = circuit_scan_by_ifp(ifp);
+	if (!circuit) {
+		vty_out(vty, "ISIS is not enabled on circuit %s\n", ifp->name);
+		return CMD_ERR_NO_MATCH;
+	}
+
+	bool ip = circuit->ip_router, ipv6 = circuit->ipv6_router;
+	if (af[2] != '\0')
+		ipv6 = false;
+	else
+		ip = false;
+
+	isis_circuit_af_set(circuit, ip, ipv6);
+
+	if (!ip && !ipv6)
+		isis_circuit_del(circuit);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN (isis_bfd,
+       isis_bfd_cmd,
+       PROTO_NAME " bfd",
+       PROTO_HELP
+       "Enable BFD support\n")
+{
+	struct isis_circuit *circuit = isis_circuit_lookup(vty);
+
+	if (!circuit)
+		return CMD_ERR_NO_MATCH;
+
+	if (circuit->bfd_config.enabled)
+		return CMD_SUCCESS;
+
+	circuit->bfd_config.enabled = true;
+	isis_bfd_circuit_cmd(circuit);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN (no_isis_bfd,
+       no_isis_bfd_cmd,
+       "no " PROTO_NAME " bfd",
+       NO_STR
+       PROTO_HELP
+       "Disables BFD support\n"
+)
+{
+	struct isis_circuit *circuit = isis_circuit_lookup(vty);
+
+	if (!circuit)
+		return CMD_ERR_NO_MATCH;
+
+	if (!circuit->bfd_config.enabled)
+		return CMD_SUCCESS;
+
+	circuit->bfd_config.enabled = false;
+	isis_bfd_circuit_cmd(circuit);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN (set_overload_bit,
+       set_overload_bit_cmd,
+       "set-overload-bit",
+       "Set overload bit to avoid any transit traffic\n")
+{
+	VTY_DECLVAR_CONTEXT(isis_area, area);
+
+	isis_area_overload_bit_set(area, true);
+	return CMD_SUCCESS;
+}
+
+DEFUN (no_set_overload_bit,
+       no_set_overload_bit_cmd,
+       "no set-overload-bit",
+       "Reset overload bit to accept transit traffic\n"
+       "Reset overload bit\n")
+{
+	VTY_DECLVAR_CONTEXT(isis_area, area);
+
+	isis_area_overload_bit_set(area, false);
+	return CMD_SUCCESS;
+}
+
+static int isis_vty_password_set(struct vty *vty, int argc,
+			  struct cmd_token *argv[], int level)
+{
+	VTY_DECLVAR_CONTEXT(isis_area, area);
+
+	int idx_algo = 1;
+	int idx_password = 2;
+	int idx_snp_auth = 5;
+	uint8_t snp_auth = 0;
+
+	const char *passwd = argv[idx_password]->arg;
+	if (strlen(passwd) > 254) {
+		vty_out(vty, "Too long area password (>254)\n");
+		return CMD_WARNING_CONFIG_FAILED;
+	}
+
+	if (argc > idx_snp_auth) {
+		snp_auth = SNP_AUTH_SEND;
+		if (strmatch(argv[idx_snp_auth]->text, "validate"))
+			snp_auth |= SNP_AUTH_RECV;
+	}
+
+	if (strmatch(argv[idx_algo]->text, "clear")) {
+		return isis_area_passwd_cleartext_set(area, level,
+						      passwd, snp_auth);
+	} else if (strmatch(argv[idx_algo]->text, "md5")) {
+		return isis_area_passwd_hmac_md5_set(area, level,
+						     passwd, snp_auth);
+	}
+
+	return CMD_WARNING_CONFIG_FAILED;
+}
+
+DEFUN (domain_passwd,
+       domain_passwd_cmd,
+       "domain-password <clear|md5> WORD [authenticate snp <send-only|validate>]",
+       "Set the authentication password for a routing domain\n"
+       "Authentication type\n"
+       "Authentication type\n"
+       "Level-wide password\n"
+       "Authentication\n"
+       "SNP PDUs\n"
+       "Send but do not check PDUs on receiving\n"
+       "Send and check PDUs on receiving\n")
+{
+	return isis_vty_password_set(vty, argc, argv, IS_LEVEL_2);
+}
+
+DEFUN (no_domain_passwd,
+       no_domain_passwd_cmd,
+       "no domain-password",
+       NO_STR
+       "Set the authentication password for a routing domain\n")
+{
+	VTY_DECLVAR_CONTEXT(isis_area, area);
+
+	return isis_area_passwd_unset(area, IS_LEVEL_2);
+}
+
+static int
+isis_vty_lsp_gen_interval_set(struct vty *vty, int level, uint16_t interval)
+{
+	VTY_DECLVAR_CONTEXT(isis_area, area);
+	int lvl;
+
+	for (lvl = IS_LEVEL_1; lvl <= IS_LEVEL_2; ++lvl) {
+		if (!(lvl & level))
+			continue;
+
+		if (interval >= area->lsp_refresh[lvl - 1]) {
+			vty_out(vty,
+				"LSP gen interval %us must be less than the LSP refresh interval %us\n",
+				interval, area->lsp_refresh[lvl - 1]);
+			return CMD_WARNING_CONFIG_FAILED;
+		}
+	}
+
+	for (lvl = IS_LEVEL_1; lvl <= IS_LEVEL_2; ++lvl) {
+		if (!(lvl & level))
+			continue;
+		area->lsp_gen_interval[lvl - 1] = interval;
+	}
+
+	return CMD_SUCCESS;
+}
+
+DEFUN (lsp_gen_interval,
+       lsp_gen_interval_cmd,
+       "lsp-gen-interval (1-120)",
+       "Minimum interval between regenerating same LSP\n"
+       "Minimum interval in seconds\n")
+{
+	uint16_t interval = atoi(argv[1]->arg);
+
+	return isis_vty_lsp_gen_interval_set(vty, IS_LEVEL_1_AND_2, interval);
+}
+
+DEFUN (no_lsp_gen_interval,
+       no_lsp_gen_interval_cmd,
+       "no lsp-gen-interval [(1-120)]",
+       NO_STR
+       "Minimum interval between regenerating same LSP\n"
+       "Minimum interval in seconds\n")
+{
+	VTY_DECLVAR_CONTEXT(isis_area, area);
+
+	return isis_vty_lsp_gen_interval_set(vty, IS_LEVEL_1_AND_2,
+					     DEFAULT_MIN_LSP_GEN_INTERVAL);
+}
+
+static int
+isis_vty_lsp_refresh_set(struct vty *vty, int level, uint16_t interval)
+{
+	VTY_DECLVAR_CONTEXT(isis_area, area);
+	int lvl;
+
+	for (lvl = IS_LEVEL_1; lvl <= IS_LEVEL_2; ++lvl) {
+		if (!(lvl & level))
+			continue;
+		if (interval <= area->lsp_gen_interval[lvl - 1]) {
+			vty_out(vty,
+				"LSP refresh interval %us must be greater than the configured LSP gen interval %us\n",
+				interval, area->lsp_gen_interval[lvl - 1]);
+			return CMD_WARNING_CONFIG_FAILED;
+		}
+		if (interval > (area->max_lsp_lifetime[lvl - 1] - 300)) {
+			vty_out(vty,
+				"LSP refresh interval %us must be less than the configured LSP lifetime %us less 300\n",
+				interval, area->max_lsp_lifetime[lvl - 1]);
+			return CMD_WARNING_CONFIG_FAILED;
+		}
+	}
+
+	for (lvl = IS_LEVEL_1; lvl <= IS_LEVEL_2; ++lvl) {
+		if (!(lvl & level))
+			continue;
+		isis_area_lsp_refresh_set(area, lvl, interval);
+	}
+
+	return CMD_SUCCESS;
+}
+
+DEFUN (lsp_refresh_interval,
+       lsp_refresh_interval_cmd,
+       "lsp-refresh-interval (1-65235)",
+       "LSP refresh interval\n"
+       "LSP refresh interval in seconds\n")
+{
+	unsigned int interval = atoi(argv[1]->arg);
+	return isis_vty_lsp_refresh_set(vty, IS_LEVEL_1_AND_2, interval);
+}
+
+DEFUN (no_lsp_refresh_interval,
+       no_lsp_refresh_interval_cmd,
+       "no lsp-refresh-interval [(1-65235)]",
+       NO_STR
+       "LSP refresh interval\n"
+       "LSP refresh interval in seconds\n")
+{
+	return isis_vty_lsp_refresh_set(vty, IS_LEVEL_1_AND_2,
+					DEFAULT_MAX_LSP_GEN_INTERVAL);
+}
+
+static int
+isis_vty_max_lsp_lifetime_set(struct vty *vty, int level, uint16_t interval)
+{
+	VTY_DECLVAR_CONTEXT(isis_area, area);
+	int lvl;
+	uint16_t refresh_interval = interval - 300;
+	int set_refresh_interval[ISIS_LEVELS] = {0, 0};
+
+	for (lvl = IS_LEVEL_1; lvl <= IS_LEVEL_2; lvl++) {
+		if (!(lvl & level))
+			continue;
+
+		if (refresh_interval < area->lsp_refresh[lvl - 1]) {
+			vty_out(vty,
+				"Level %d Max LSP lifetime %us must be 300s greater than the configured LSP refresh interval %us\n",
+				lvl, interval, area->lsp_refresh[lvl - 1]);
+			vty_out(vty,
+				"Automatically reducing level %d LSP refresh interval to %us\n",
+				lvl, refresh_interval);
+			set_refresh_interval[lvl - 1] = 1;
+
+			if (refresh_interval
+			    <= area->lsp_gen_interval[lvl - 1]) {
+				vty_out(vty,
+					"LSP refresh interval %us must be greater than the configured LSP gen interval %us\n",
+					refresh_interval,
+					area->lsp_gen_interval[lvl - 1]);
+				return CMD_WARNING_CONFIG_FAILED;
+			}
+		}
+	}
+
+	for (lvl = IS_LEVEL_1; lvl <= IS_LEVEL_2; lvl++) {
+		if (!(lvl & level))
+			continue;
+		isis_area_max_lsp_lifetime_set(area, lvl, interval);
+		if (set_refresh_interval[lvl - 1])
+			isis_area_lsp_refresh_set(area, lvl, refresh_interval);
+	}
+
+	return CMD_SUCCESS;
+}
+
+DEFUN (max_lsp_lifetime,
+       max_lsp_lifetime_cmd,
+       "max-lsp-lifetime (350-65535)",
+       "Maximum LSP lifetime\n"
+       "LSP lifetime in seconds\n")
+{
+	int lifetime = atoi(argv[1]->arg);
+
+	return isis_vty_max_lsp_lifetime_set(vty, IS_LEVEL_1_AND_2, lifetime);
+}
+
+
+DEFUN (no_max_lsp_lifetime,
+       no_max_lsp_lifetime_cmd,
+       "no max-lsp-lifetime [(350-65535)]",
+       NO_STR
+       "Maximum LSP lifetime\n"
+       "LSP lifetime in seconds\n")
+{
+	return isis_vty_max_lsp_lifetime_set(vty, IS_LEVEL_1_AND_2,
+					     DEFAULT_LSP_LIFETIME);
+}
+
+DEFUN (spf_interval,
+       spf_interval_cmd,
+       "spf-interval (1-120)",
+       "Minimum interval between SPF calculations\n"
+       "Minimum interval between consecutive SPFs in seconds\n")
+{
+	VTY_DECLVAR_CONTEXT(isis_area, area);
+	uint16_t interval = atoi(argv[1]->arg);
+
+	area->min_spf_interval[0] = interval;
+	area->min_spf_interval[1] = interval;
+
+	return CMD_SUCCESS;
+}
+
+DEFUN (no_spf_interval,
+       no_spf_interval_cmd,
+       "no spf-interval [(1-120)]",
+       NO_STR
+       "Minimum interval between SPF calculations\n"
+       "Minimum interval between consecutive SPFs in seconds\n")
+{
+	VTY_DECLVAR_CONTEXT(isis_area, area);
+
+	area->min_spf_interval[0] = MINIMUM_SPF_INTERVAL;
+	area->min_spf_interval[1] = MINIMUM_SPF_INTERVAL;
+
+	return CMD_SUCCESS;
+}
+
+static int isis_vty_lsp_mtu_set(struct vty *vty, unsigned int lsp_mtu)
+{
+	VTY_DECLVAR_CONTEXT(isis_area, area);
+	struct listnode *node;
+	struct isis_circuit *circuit;
+
+	for (ALL_LIST_ELEMENTS_RO(area->circuit_list, node, circuit)) {
+		if (circuit->state != C_STATE_INIT
+		    && circuit->state != C_STATE_UP)
+			continue;
+		if (lsp_mtu > isis_circuit_pdu_size(circuit)) {
+			vty_out(vty,
+				"ISIS area contains circuit %s, which has a maximum PDU size of %zu.\n",
+				circuit->interface->name,
+				isis_circuit_pdu_size(circuit));
+			return CMD_WARNING_CONFIG_FAILED;
+		}
+	}
+
+	isis_area_lsp_mtu_set(area, lsp_mtu);
+	return CMD_SUCCESS;
+}
+
+DEFUN (area_lsp_mtu,
+       area_lsp_mtu_cmd,
+       "lsp-mtu (128-4352)",
+       "Configure the maximum size of generated LSPs\n"
+       "Maximum size of generated LSPs\n")
+{
+	int idx_number = 1;
+	unsigned int lsp_mtu;
+
+	lsp_mtu = strtoul(argv[idx_number]->arg, NULL, 10);
+
+	return isis_vty_lsp_mtu_set(vty, lsp_mtu);
+}
+
+DEFUN (no_area_lsp_mtu,
+       no_area_lsp_mtu_cmd,
+       "no lsp-mtu [(128-4352)]",
+       NO_STR
+       "Configure the maximum size of generated LSPs\n"
+       "Maximum size of generated LSPs\n")
+{
+	return isis_vty_lsp_mtu_set(vty, DEFAULT_LSP_MTU);
+}
+
+DEFUN (no_spf_delay_ietf,
+       no_spf_delay_ietf_cmd,
+       "no spf-delay-ietf",
+       NO_STR
+       "IETF SPF delay algorithm\n")
+{
+	VTY_DECLVAR_CONTEXT(isis_area, area);
+
+	spf_backoff_free(area->spf_delay_ietf[0]);
+	spf_backoff_free(area->spf_delay_ietf[1]);
+	area->spf_delay_ietf[0] = NULL;
+	area->spf_delay_ietf[1] = NULL;
+
+	return CMD_SUCCESS;
+}
+
+DEFUN (spf_delay_ietf,
+       spf_delay_ietf_cmd,
+       "spf-delay-ietf init-delay (0-60000) short-delay (0-60000) long-delay (0-60000) holddown (0-60000) time-to-learn (0-60000)",
+       "IETF SPF delay algorithm\n"
+       "Delay used while in QUIET state\n"
+       "Delay used while in QUIET state in milliseconds\n"
+       "Delay used while in SHORT_WAIT state\n"
+       "Delay used while in SHORT_WAIT state in milliseconds\n"
+       "Delay used while in LONG_WAIT\n"
+       "Delay used while in LONG_WAIT state in milliseconds\n"
+       "Time with no received IGP events before considering IGP stable\n"
+       "Time with no received IGP events before considering IGP stable (in milliseconds)\n"
+       "Maximum duration needed to learn all the events related to a single failure\n"
+       "Maximum duration needed to learn all the events related to a single failure (in milliseconds)\n")
+{
+	VTY_DECLVAR_CONTEXT(isis_area, area);
+
+	long init_delay = atol(argv[2]->arg);
+	long short_delay = atol(argv[4]->arg);
+	long long_delay = atol(argv[6]->arg);
+	long holddown = atol(argv[8]->arg);
+	long timetolearn = atol(argv[10]->arg);
+
+	size_t bufsiz = strlen(area->area_tag) + sizeof("IS-IS  Lx");
+	char *buf = XCALLOC(MTYPE_TMP, bufsiz);
+
+	snprintf(buf, bufsiz, "IS-IS %s L1", area->area_tag);
+	spf_backoff_free(area->spf_delay_ietf[0]);
+	area->spf_delay_ietf[0] =
+		spf_backoff_new(master, buf, init_delay, short_delay,
+				long_delay, holddown, timetolearn);
+
+	snprintf(buf, bufsiz, "IS-IS %s L2", area->area_tag);
+	spf_backoff_free(area->spf_delay_ietf[1]);
+	area->spf_delay_ietf[1] =
+		spf_backoff_new(master, buf, init_delay, short_delay,
+				long_delay, holddown, timetolearn);
+
+	XFREE(MTYPE_TMP, buf);
+	return CMD_SUCCESS;
+}
+
+DEFUN (area_purge_originator,
+       area_purge_originator_cmd,
+       "[no] purge-originator",
+       NO_STR
+       "Use the RFC 6232 purge-originator\n")
+{
+	VTY_DECLVAR_CONTEXT(isis_area, area);
+
+	area->purge_originator = !!strcmp(argv[0]->text, "no");
+	return CMD_SUCCESS;
+}
+
+DEFUN (isis_passive,
+       isis_passive_cmd,
+       PROTO_NAME " passive",
+       PROTO_HELP
+       "Configure the passive mode for interface\n")
+{
+	struct isis_circuit *circuit = isis_circuit_lookup(vty);
+	if (!circuit)
+		return CMD_ERR_NO_MATCH;
+
+	CMD_FERR_RETURN(isis_circuit_passive_set(circuit, 1),
+			"Cannot set passive: $ERR");
+	return CMD_SUCCESS;
+}
+
+DEFUN (no_isis_passive,
+       no_isis_passive_cmd,
+       "no " PROTO_NAME " passive",
+       NO_STR
+       PROTO_HELP
+       "Configure the passive mode for interface\n")
+{
+	struct isis_circuit *circuit = isis_circuit_lookup(vty);
+	if (!circuit)
+		return CMD_ERR_NO_MATCH;
+
+	CMD_FERR_RETURN(isis_circuit_passive_set(circuit, 0),
+			"Cannot set no passive: $ERR");
+	return CMD_SUCCESS;
+}
+
+DEFUN (isis_passwd,
+       isis_passwd_cmd,
+       PROTO_NAME " password <md5|clear> WORD",
+       PROTO_HELP
+       "Configure the authentication password for a circuit\n"
+       "HMAC-MD5 authentication\n"
+       "Cleartext password\n"
+       "Circuit password\n")
+{
+	int idx_encryption = 2;
+	int idx_word = 3;
+	struct isis_circuit *circuit = isis_circuit_lookup(vty);
+	ferr_r rv;
+
+	if (!circuit)
+		return CMD_ERR_NO_MATCH;
+
+	if (argv[idx_encryption]->arg[0] == 'm')
+		rv = isis_circuit_passwd_hmac_md5_set(circuit,
+						      argv[idx_word]->arg);
+	else
+		rv = isis_circuit_passwd_cleartext_set(circuit,
+						       argv[idx_word]->arg);
+
+	CMD_FERR_RETURN(rv, "Failed to set circuit password: $ERR");
+	return CMD_SUCCESS;
+}
+
+DEFUN (no_isis_passwd,
+       no_isis_passwd_cmd,
+       "no " PROTO_NAME " password [<md5|clear> WORD]",
+       NO_STR
+       PROTO_HELP
+       "Configure the authentication password for a circuit\n"
+       "HMAC-MD5 authentication\n"
+       "Cleartext password\n"
+       "Circuit password\n")
+{
+	struct isis_circuit *circuit = isis_circuit_lookup(vty);
+	if (!circuit)
+		return CMD_ERR_NO_MATCH;
+
+	CMD_FERR_RETURN(isis_circuit_passwd_unset(circuit),
+			"Failed to unset circuit password: $ERR");
+	return CMD_SUCCESS;
+}
+
+DEFUN (isis_metric,
+       isis_metric_cmd,
+       PROTO_NAME " metric (0-16777215)",
+       PROTO_HELP
+       "Set default metric for circuit\n"
+       "Default metric value\n")
+{
+	int idx_number = 2;
+	int met;
+	struct isis_circuit *circuit = isis_circuit_lookup(vty);
+	if (!circuit)
+		return CMD_ERR_NO_MATCH;
+
+	met = atoi(argv[idx_number]->arg);
+
+	/* RFC3787 section 5.1 */
+	if (circuit->area && circuit->area->oldmetric == 1
+	    && met > MAX_NARROW_LINK_METRIC) {
+		vty_out(vty,
+			"Invalid metric %d - should be <0-63> when narrow metric type enabled\n",
+			met);
+		return CMD_WARNING_CONFIG_FAILED;
+	}
+
+	/* RFC4444 */
+	if (circuit->area && circuit->area->newmetric == 1
+	    && met > MAX_WIDE_LINK_METRIC) {
+		vty_out(vty,
+			"Invalid metric %d - should be <0-16777215> when wide metric type enabled\n",
+			met);
+		return CMD_WARNING_CONFIG_FAILED;
+	}
+
+	CMD_FERR_RETURN(isis_circuit_metric_set(circuit, IS_LEVEL_1, met),
+			"Failed to set L1 metric: $ERR");
+	CMD_FERR_RETURN(isis_circuit_metric_set(circuit, IS_LEVEL_2, met),
+			"Failed to set L2 metric: $ERR");
+	return CMD_SUCCESS;
+}
+
+DEFUN (no_isis_metric,
+       no_isis_metric_cmd,
+       "no " PROTO_NAME " metric [(0-16777215)]",
+       NO_STR
+       PROTO_HELP
+       "Set default metric for circuit\n"
+       "Default metric value\n")
+{
+	struct isis_circuit *circuit = isis_circuit_lookup(vty);
+	if (!circuit)
+		return CMD_ERR_NO_MATCH;
+
+	CMD_FERR_RETURN(isis_circuit_metric_set(circuit, IS_LEVEL_1,
+						DEFAULT_CIRCUIT_METRIC),
+			"Failed to set L1 metric: $ERR");
+	CMD_FERR_RETURN(isis_circuit_metric_set(circuit, IS_LEVEL_2,
+						DEFAULT_CIRCUIT_METRIC),
+			"Failed to set L2 metric: $ERR");
+	return CMD_SUCCESS;
+}
+
+DEFUN (isis_hello_interval,
+       isis_hello_interval_cmd,
+       PROTO_NAME " hello-interval (1-600)",
+       PROTO_HELP
+       "Set Hello interval\n"
+       "Holdtime 1 seconds, interval depends on multiplier\n")
+{
+	uint32_t interval = atoi(argv[2]->arg);
+	struct isis_circuit *circuit = isis_circuit_lookup(vty);
+	if (!circuit)
+		return CMD_ERR_NO_MATCH;
+
+	circuit->hello_interval[0] = interval;
+	circuit->hello_interval[1] = interval;
+
+	return CMD_SUCCESS;
+}
+
+DEFUN (no_isis_hello_interval,
+       no_isis_hello_interval_cmd,
+       "no " PROTO_NAME " hello-interval [(1-600)]",
+       NO_STR
+       PROTO_HELP
+       "Set Hello interval\n"
+       "Holdtime 1 second, interval depends on multiplier\n")
+{
+	struct isis_circuit *circuit = isis_circuit_lookup(vty);
+	if (!circuit)
+		return CMD_ERR_NO_MATCH;
+
+	circuit->hello_interval[0] = DEFAULT_HELLO_INTERVAL;
+	circuit->hello_interval[1] = DEFAULT_HELLO_INTERVAL;
+
+	return CMD_SUCCESS;
+}
+
+DEFUN (isis_hello_multiplier,
+       isis_hello_multiplier_cmd,
+       PROTO_NAME " hello-multiplier (2-100)",
+       PROTO_HELP
+       "Set multiplier for Hello holding time\n"
+       "Hello multiplier value\n")
+{
+	uint16_t mult = atoi(argv[2]->arg);
+	struct isis_circuit *circuit = isis_circuit_lookup(vty);
+	if (!circuit)
+		return CMD_ERR_NO_MATCH;
+
+	circuit->hello_multiplier[0] = mult;
+	circuit->hello_multiplier[1] = mult;
+
+	return CMD_SUCCESS;
+}
+
+DEFUN (no_isis_hello_multiplier,
+       no_isis_hello_multiplier_cmd,
+       "no " PROTO_NAME " hello-multiplier [(2-100)]",
+       NO_STR
+       PROTO_HELP
+       "Set multiplier for Hello holding time\n"
+       "Hello multiplier value\n")
+{
+	struct isis_circuit *circuit = isis_circuit_lookup(vty);
+	if (!circuit)
+		return CMD_ERR_NO_MATCH;
+
+	circuit->hello_multiplier[0] = DEFAULT_HELLO_MULTIPLIER;
+	circuit->hello_multiplier[1] = DEFAULT_HELLO_MULTIPLIER;
+
+	return CMD_SUCCESS;
+}
+
+DEFUN (csnp_interval,
+       csnp_interval_cmd,
+       PROTO_NAME " csnp-interval (1-600)",
+       PROTO_HELP
+       "Set CSNP interval in seconds\n"
+       "CSNP interval value\n")
+{
+	uint16_t interval = atoi(argv[2]->arg);
+	struct isis_circuit *circuit = isis_circuit_lookup(vty);
+	if (!circuit)
+		return CMD_ERR_NO_MATCH;
+
+	circuit->csnp_interval[0] = interval;
+	circuit->csnp_interval[1] = interval;
+
+	return CMD_SUCCESS;
+}
+
+DEFUN (no_csnp_interval,
+       no_csnp_interval_cmd,
+       "no " PROTO_NAME " csnp-interval [(1-600)]",
+       NO_STR
+       PROTO_HELP
+       "Set CSNP interval in seconds\n"
+       "CSNP interval value\n")
+{
+	struct isis_circuit *circuit = isis_circuit_lookup(vty);
+	if (!circuit)
+		return CMD_ERR_NO_MATCH;
+
+	circuit->csnp_interval[0] = DEFAULT_CSNP_INTERVAL;
+	circuit->csnp_interval[1] = DEFAULT_CSNP_INTERVAL;
+
+	return CMD_SUCCESS;
+}
+
+DEFUN (psnp_interval,
+       psnp_interval_cmd,
+       PROTO_NAME " psnp-interval (1-120)",
+       PROTO_HELP
+       "Set PSNP interval in seconds\n"
+       "PSNP interval value\n")
+{
+	uint16_t interval = atoi(argv[2]->arg);
+	struct isis_circuit *circuit = isis_circuit_lookup(vty);
+	if (!circuit)
+		return CMD_ERR_NO_MATCH;
+
+	circuit->psnp_interval[0] = interval;
+	circuit->psnp_interval[1] = interval;
+
+	return CMD_SUCCESS;
+}
+
+DEFUN (no_psnp_interval,
+       no_psnp_interval_cmd,
+       "no " PROTO_NAME " psnp-interval [(1-120)]",
+       NO_STR
+       PROTO_HELP
+       "Set PSNP interval in seconds\n"
+       "PSNP interval value\n")
+{
+	struct isis_circuit *circuit = isis_circuit_lookup(vty);
+	if (!circuit)
+		return CMD_ERR_NO_MATCH;
+
+	circuit->psnp_interval[0] = DEFAULT_PSNP_INTERVAL;
+	circuit->psnp_interval[1] = DEFAULT_PSNP_INTERVAL;
+
+	return CMD_SUCCESS;
+}
+
+DEFUN (circuit_topology,
+       circuit_topology_cmd,
+       PROTO_NAME " topology " ISIS_MT_NAMES,
+       PROTO_HELP
+       "Configure interface IS-IS topologies\n"
+       ISIS_MT_DESCRIPTIONS)
+{
+	struct isis_circuit *circuit = isis_circuit_lookup(vty);
+	if (!circuit)
+		return CMD_ERR_NO_MATCH;
+	const char *arg = argv[2]->arg;
+	uint16_t mtid = isis_str2mtid(arg);
+
+	if (circuit->area && circuit->area->oldmetric) {
+		vty_out(vty,
+			"Multi topology IS-IS can only be used with wide metrics\n");
+		return CMD_WARNING_CONFIG_FAILED;
+	}
+
+	if (mtid == (uint16_t)-1) {
+		vty_out(vty, "Don't know topology '%s'\n", arg);
+		return CMD_WARNING_CONFIG_FAILED;
+	}
+
+	return isis_circuit_mt_enabled_set(circuit, mtid, true);
+}
+
+DEFUN (no_circuit_topology,
+       no_circuit_topology_cmd,
+       "no " PROTO_NAME " topology " ISIS_MT_NAMES,
+       NO_STR
+       PROTO_HELP
+       "Configure interface IS-IS topologies\n"
+       ISIS_MT_DESCRIPTIONS)
+{
+	struct isis_circuit *circuit = isis_circuit_lookup(vty);
+	if (!circuit)
+		return CMD_ERR_NO_MATCH;
+	const char *arg = argv[3]->arg;
+	uint16_t mtid = isis_str2mtid(arg);
+
+	if (circuit->area && circuit->area->oldmetric) {
+		vty_out(vty,
+			"Multi topology IS-IS can only be used with wide metrics\n");
+		return CMD_WARNING_CONFIG_FAILED;
+	}
+
+	if (mtid == (uint16_t)-1) {
+		vty_out(vty, "Don't know topology '%s'\n", arg);
+		return CMD_WARNING_CONFIG_FAILED;
+	}
+
+	return isis_circuit_mt_enabled_set(circuit, mtid, false);
+}
+
+void isis_vty_daemon_init(void)
+{
+	install_element(ROUTER_NODE, &fabric_tier_cmd);
+	install_element(ROUTER_NODE, &no_fabric_tier_cmd);
+	install_element(ROUTER_NODE, &triggered_csnp_cmd);
+	install_element(ROUTER_NODE, &no_triggered_csnp_cmd);
+
+	install_element(ENABLE_NODE, &show_lsp_flooding_cmd);
+
+	install_element(INTERFACE_NODE, &ip_router_isis_cmd);
+	install_element(INTERFACE_NODE, &ip6_router_isis_cmd);
+	install_element(INTERFACE_NODE, &no_ip_router_isis_cmd);
+	install_element(INTERFACE_NODE, &isis_bfd_cmd);
+	install_element(INTERFACE_NODE, &no_isis_bfd_cmd);
+
+	install_element(ROUTER_NODE, &set_overload_bit_cmd);
+	install_element(ROUTER_NODE, &no_set_overload_bit_cmd);
+
+	install_element(ROUTER_NODE, &domain_passwd_cmd);
+	install_element(ROUTER_NODE, &no_domain_passwd_cmd);
+
+	install_element(ROUTER_NODE, &lsp_gen_interval_cmd);
+	install_element(ROUTER_NODE, &no_lsp_gen_interval_cmd);
+
+	install_element(ROUTER_NODE, &lsp_refresh_interval_cmd);
+	install_element(ROUTER_NODE, &no_lsp_refresh_interval_cmd);
+
+	install_element(ROUTER_NODE, &max_lsp_lifetime_cmd);
+	install_element(ROUTER_NODE, &no_max_lsp_lifetime_cmd);
+
+	install_element(ROUTER_NODE, &area_lsp_mtu_cmd);
+	install_element(ROUTER_NODE, &no_area_lsp_mtu_cmd);
+
+	install_element(ROUTER_NODE, &spf_interval_cmd);
+	install_element(ROUTER_NODE, &no_spf_interval_cmd);
+
+	install_element(ROUTER_NODE, &spf_delay_ietf_cmd);
+	install_element(ROUTER_NODE, &no_spf_delay_ietf_cmd);
+
+	install_element(ROUTER_NODE, &area_purge_originator_cmd);
+
+	install_element(INTERFACE_NODE, &isis_passive_cmd);
+	install_element(INTERFACE_NODE, &no_isis_passive_cmd);
+
+	install_element(INTERFACE_NODE, &isis_passwd_cmd);
+	install_element(INTERFACE_NODE, &no_isis_passwd_cmd);
+
+	install_element(INTERFACE_NODE, &isis_metric_cmd);
+	install_element(INTERFACE_NODE, &no_isis_metric_cmd);
+
+	install_element(INTERFACE_NODE, &isis_hello_interval_cmd);
+	install_element(INTERFACE_NODE, &no_isis_hello_interval_cmd);
+
+	install_element(INTERFACE_NODE, &isis_hello_multiplier_cmd);
+	install_element(INTERFACE_NODE, &no_isis_hello_multiplier_cmd);
+
+	install_element(INTERFACE_NODE, &csnp_interval_cmd);
+	install_element(INTERFACE_NODE, &no_csnp_interval_cmd);
+
+	install_element(INTERFACE_NODE, &psnp_interval_cmd);
+	install_element(INTERFACE_NODE, &no_psnp_interval_cmd);
+
+	install_element(INTERFACE_NODE, &circuit_topology_cmd);
+	install_element(INTERFACE_NODE, &no_circuit_topology_cmd);
+}