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tests: add IS-IS classic LFA unit tests
These unit tests check the basic LFA loop-free condition on a variety of different network topologies. None of the implemented LFA tie-breakers are tested here. Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
This commit is contained in:
Renato Westphal
parent
fc156c28a5
commit
c8a4f33195
@ -39,6 +39,7 @@
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enum test_type {
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TEST_SPF = 1,
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TEST_REVERSE_SPF,
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TEST_LFA,
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TEST_TI_LFA,
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};
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@ -72,6 +73,38 @@ static void test_run_spf(struct vty *vty, const struct isis_topology *topology,
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isis_spftree_del(spftree);
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}
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static void test_run_lfa(struct vty *vty, const struct isis_topology *topology,
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const struct isis_test_node *root,
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struct isis_area *area, struct lspdb_head *lspdb,
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int level, int tree,
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struct lfa_protected_resource *protected_resource)
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{
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struct isis_spftree *spftree_self;
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uint8_t flags;
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/* Run forward SPF in the root node. */
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flags = F_SPFTREE_NO_ADJACENCIES;
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spftree_self = isis_spftree_new(area, lspdb, root->sysid, level, tree,
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SPF_TYPE_FORWARD, flags);
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isis_run_spf(spftree_self);
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/* Run forward SPF on all adjacent routers. */
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isis_spf_run_neighbors(spftree_self);
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/* Compute the LFA repair paths. */
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isis_lfa_compute(area, NULL, spftree_self, protected_resource);
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/* Print the SPT and the corresponding main/backup routing tables. */
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isis_print_spftree(vty, spftree_self);
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vty_out(vty, "Main:\n");
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isis_print_routes(vty, spftree_self, false, false);
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vty_out(vty, "Backup:\n");
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isis_print_routes(vty, spftree_self, false, true);
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/* Cleanup everything. */
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isis_spftree_del(spftree_self);
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}
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static void test_run_ti_lfa(struct vty *vty,
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const struct isis_topology *topology,
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const struct isis_test_node *root,
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@ -120,7 +153,9 @@ static void test_run_ti_lfa(struct vty *vty,
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vty_out(vty, " %s\n", print_sys_hostname(node->sysid));
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vty_out(vty, "\n");
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/* Print the post-convergence SPT and the correspoding routing table. */
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/*
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* Print the post-convergence SPT and the corresponding routing table.
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*/
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isis_print_spftree(vty, spftree_pc);
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isis_print_routes(vty, spftree_self, false, true);
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@ -202,6 +237,11 @@ static int test_run(struct vty *vty, const struct isis_topology *topology,
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&area->lspdb[level - 1], level,
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tree, true);
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break;
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case TEST_LFA:
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test_run_lfa(vty, topology, root, area,
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&area->lspdb[level - 1], level,
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tree, &protected_resource);
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break;
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case TEST_TI_LFA:
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test_run_ti_lfa(vty, topology, root, area,
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&area->lspdb[level - 1], level,
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@ -221,10 +261,11 @@ static int test_run(struct vty *vty, const struct isis_topology *topology,
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}
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DEFUN(test_isis, test_isis_cmd,
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"test isis topology (1-13) root HOSTNAME\
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"test isis topology (1-14) root HOSTNAME\
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<\
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spf\
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|reverse-spf\
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|lfa system-id WORD [pseudonode-id <1-255>]\
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|ti-lfa system-id WORD [pseudonode-id <1-255>] [node-protection]\
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>\
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[display-lspdb] [<ipv4-only|ipv6-only>] [<level-1-only|level-2-only>]",
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@ -236,6 +277,11 @@ DEFUN(test_isis, test_isis_cmd,
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"SPF root hostname\n"
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"Normal Shortest Path First\n"
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"Reverse Shortest Path First\n"
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"Classic LFA\n"
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"System ID\n"
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"System ID\n"
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"Pseudonode-ID\n"
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"Pseudonode-ID\n"
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"Topology Independent LFA\n"
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"System ID\n"
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"System ID\n"
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@ -281,7 +327,15 @@ DEFUN(test_isis, test_isis_cmd,
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test_type = TEST_SPF;
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else if (argv_find(argv, argc, "reverse-spf", &idx))
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test_type = TEST_REVERSE_SPF;
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else if (argv_find(argv, argc, "ti-lfa", &idx)) {
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else if (argv_find(argv, argc, "lfa", &idx)) {
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test_type = TEST_LFA;
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fail_sysid_str = argv[idx + 2]->arg;
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if (argv_find(argv, argc, "pseudonode-id", &idx))
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fail_pseudonode_id =
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strtoul(argv[idx + 1]->arg, NULL, 10);
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protection_type = LFA_LINK_PROTECTION;
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} else if (argv_find(argv, argc, "ti-lfa", &idx)) {
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test_type = TEST_TI_LFA;
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fail_sysid_str = argv[idx + 2]->arg;
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@ -404,7 +458,7 @@ int main(int argc, char **argv)
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listnode_add(im->isis, isis);
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SET_FLAG(im->options, F_ISIS_UNIT_TEST);
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debug_spf_events |= DEBUG_SPF_EVENTS;
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debug_tilfa |= DEBUG_TILFA;
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debug_lfa |= DEBUG_LFA;
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debug_events |= DEBUG_EVENTS;
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debug_rte_events |= DEBUG_RTE_EVENTS;
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@ -15,6 +15,22 @@ test isis topology 13 root rt1 spf ipv4-only
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test isis topology 4 root rt1 reverse-spf ipv4-only
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test isis topology 11 root rt1 reverse-spf
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test isis topology 1 root rt1 lfa system-id rt2
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test isis topology 2 root rt4 lfa system-id rt1 pseudonode-id 1
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test isis topology 2 root rt4 lfa system-id rt6
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test isis topology 3 root rt1 lfa system-id rt2
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test isis topology 3 root rt1 lfa system-id rt3
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test isis topology 7 root rt1 lfa system-id rt4
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test isis topology 7 root rt7 lfa system-id rt8
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test isis topology 7 root rt8 lfa system-id rt11
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test isis topology 9 root rt3 lfa system-id rt1
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test isis topology 10 root rt8 lfa system-id rt5
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test isis topology 11 root rt3 lfa system-id rt5
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test isis topology 13 root rt4 lfa system-id rt3
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test isis topology 14 root rt1 lfa system-id rt1 pseudonode-id 1
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test isis topology 14 root rt1 lfa system-id rt2
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test isis topology 14 root rt5 lfa system-id rt4
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test isis topology 1 root rt1 ti-lfa system-id rt2
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test isis topology 2 root rt1 ti-lfa system-id rt3
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test isis topology 2 root rt1 ti-lfa system-id rt1 pseudonode-id 1
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File diff suppressed because it is too large
Load Diff
@ -531,6 +531,34 @@
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* | +---------------------+ |
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* | | | |
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* +---------+ +---------+
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* Test topology 14:
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* =================
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*
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* +---------+ +---------+
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* | | | |
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* | RT1 | | RT2 |
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* | +--------------+ |
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* | | | |
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* +----+----+ +----+----+
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* | |
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* | |
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* | |
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* | +----+----+
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* | | |
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* | | RT3 |
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* +-------------------+ |
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* | | |
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* | +----+----+
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* | |
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* | |50
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* | |
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* +----+----+ +----+----+
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* | | | |
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* | RT4 | | RT5 |
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* | +--------------+ |
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* | | | |
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* +---------+ +---------+
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*/
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struct isis_topology test_topologies[] = {
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@ -3301,6 +3329,158 @@ struct isis_topology test_topologies[] = {
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},
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},
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},
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{
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.number = 14,
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.nodes = {
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{
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.hostname = "rt1",
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.sysid = {0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
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.level = IS_LEVEL_1,
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.router_id = "10.0.255.1",
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.protocols = {
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.ipv4 = true,
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.ipv6 = true,
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},
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.networks = {
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"10.0.255.1/32",
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"2001:db8::1/128",
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},
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.adjacencies = {
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{
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.hostname = "rt1",
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.pseudonode_id = 1,
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.metric = 10,
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},
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{
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.hostname = "rt2",
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.metric = 10,
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},
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},
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},
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{
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.hostname = "rt2",
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.sysid = {0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
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.level = IS_LEVEL_1,
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.router_id = "10.0.255.2",
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.protocols = {
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.ipv4 = true,
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.ipv6 = true,
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},
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.networks = {
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"10.0.255.2/32",
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"2001:db8::2/128",
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},
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.adjacencies = {
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{
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.hostname = "rt1",
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.metric = 20,
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},
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{
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.hostname = "rt3",
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.metric = 10,
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},
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},
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},
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{
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.hostname = "rt3",
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.sysid = {0x00, 0x00, 0x00, 0x00, 0x00, 0x03},
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.level = IS_LEVEL_1,
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.router_id = "10.0.255.3",
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.protocols = {
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.ipv4 = true,
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.ipv6 = true,
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},
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.networks = {
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"10.0.255.3/32",
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"2001:db8::3/128",
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},
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.adjacencies = {
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{
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.hostname = "rt1",
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.pseudonode_id = 1,
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.metric = 10,
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},
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{
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.hostname = "rt2",
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.metric = 10,
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},
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{
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.hostname = "rt5",
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.metric = 50,
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},
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},
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},
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{
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.hostname = "rt4",
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.sysid = {0x00, 0x00, 0x00, 0x00, 0x00, 0x04},
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.level = IS_LEVEL_1,
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.router_id = "10.0.255.4",
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.protocols = {
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.ipv4 = true,
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.ipv6 = true,
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},
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.networks = {
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"10.0.255.4/32",
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"2001:db8::4/128",
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},
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.adjacencies = {
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{
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.hostname = "rt1",
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.pseudonode_id = 1,
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.metric = 10,
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},
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{
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.hostname = "rt5",
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.metric = 10,
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},
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},
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},
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{
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.hostname = "rt5",
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.sysid = {0x00, 0x00, 0x00, 0x00, 0x00, 0x05},
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.level = IS_LEVEL_1,
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.router_id = "10.0.255.5",
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.protocols = {
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.ipv4 = true,
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.ipv6 = true,
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},
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.networks = {
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"10.0.255.5/32",
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"2001:db8::5/128",
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},
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.adjacencies = {
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{
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.hostname = "rt4",
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.metric = 10,
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},
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{
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.hostname = "rt3",
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.metric = 50,
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},
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},
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},
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{
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.hostname = "rt1",
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.sysid = {0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
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.pseudonode_id = 1,
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.level = IS_LEVEL_1,
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.adjacencies = {
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{
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.hostname = "rt1",
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.metric = 0,
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},
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{
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.hostname = "rt3",
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.metric = 0,
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},
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{
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.hostname = "rt4",
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.metric = 0,
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},
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},
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},
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},
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},
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{
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/* sentinel */
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},
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