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isisd: Request SRv6 locator after zebra connection

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When SRv6 is enabled and an SRv6 locator is specified in the IS-IS
configuration, IS-IS may attempt to request SRv6 locator information from
zebra before the connection is fully established. If this occurs, the
request fails with the following error:

```
2025/02/14 21:41:20 ISIS: [HR66R-TWQYD][EC 100663302] srv6_manager_get_locator: invalid zclient socket
````

As a result, IS-IS is unable to obtain the locator information,
preventing SRv6 from working.

This commit fixes the issue by ensuring IS-IS requests SRv6 locator
information once the connection with zebra is successfully established.

Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
(cherry picked from commit f02dba19d2)
This commit is contained in:
Carmine Scarpitta 2025-02-15 10:39:40 +01:00 committed by Mergify
parent 5de0b8dc9d
commit c4ef0e37ef
1 changed files with 1 additions and 0 deletions
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isisd/isis_zebra.c
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@ -805,6 +805,7 @@ static void isis_zebra_connected(struct zclient *zclient)
zclient_register_opaque(zclient, LDP_IGP_SYNC_IF_STATE_UPDATE);
zclient_register_opaque(zclient, LDP_IGP_SYNC_ANNOUNCE_UPDATE);
bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, VRF_DEFAULT);
isis_srv6_locators_request();
}
/**