Cisco Catalyst SD-WAN Routing Configuration Guide, Cisco IOS XE Catalyst SD-WAN Release 17.x

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Cisco Catalyst SD-WAN Routing Configuration Guide, Cisco IOS XE Catalyst SD-WAN Release 17.x

Monitor MSDP configuration to interconnect Cisco SD-WAN and Non-SD-WAN

Updated: March 9, 2026

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Use this procedure to track the status of peering relationships and view the contents of the Source Active cache.

Procedure

Use the following show commands to monitor MSDP interoperability on Cisco IOS XE Catalyst SD-WAN devices: 
Device# show ip msdp vrf 1 sa-cache
MSDP Source-Active Cache - 1 entries
(10.169.1.1, 12.169.1.1), RP 41.41.41.41, AS ?,6d20h/00:05:55, Peer 12.168.3.11
Device# show ip msdp vrf 1 count
SA State per Peer Counters, <Peer>: <# SA learned>
    12.168.3.11: 1
    12.168.11.15: 0
    12.168.12.12: 0
    12.168.14.14: 0
    12.168.5.24: 0
SA State per ASN Counters, <asn>: <# sources>/<# groups>
    Total entries: 1
    ?: 1/1
Device# show ip msdp vrf 1 summary
MSDP Peer Status Summary
Peer Address     AS    State    Uptime/  Reset SA    Peer Name
                                Downtime Count Count
12.168.3.11      ?     Up       17w6d    0     1     ?
12.168.11.15     ?     Up       17w6d    0     0     ?
12.168.12.12     ?     Up       17w6d    0     0     ?
12.168.14.14     ?     Up       17w6d    0     0     ?
12.168.5.24      ?     Up       17w6d    1     0     ?
Device# show ip msdp vrf 1 peer 12.168.15.19 advertised-SAs
MSDP SA advertised to peer 12.168.15.19 (?) from mroute table

MSDP SA advertised to peer 12.168.15.19 (?) from SA cache

MSDP SA advertised to peer 12.168.15.19 (?) from mvpn sact table

20.169.1.1      13.169.1.1 RP 41.41.41.41 (?) 6d20h ref: 2

In the output above, the entry MSDP SA advertised to peer 12.168.15.19 (?) from mvpn sact table provides information about SA cache messages advertised to a peer based on the OMP SA routes received.

Example:

Device# show ip msdp vrf 1 peer 12.168.21.29
MSDP Peer 12.168.21.29 (?), AS ?
  Connection status:
    State: Up, Resets: 0, Connection source: GigabitEthernet5 (12.168.21.28)
    Uptime(Downtime): 16w4d, Messages sent/received: 169100/169106
    Output messages discarded: 82
    Connection and counters cleared 16w4d    ago
    Peer is member of mesh-group site3
  SA Filtering:
    Input (S,G) filter: sa-filter, route-map: none
    Input RP filter: none, route-map: none
    Output (S,G) filter: none, route-map: none
    Output RP filter: none, route-map: none
  SA-Requests: 
    Input filter: none
  Peer ttl threshold: 0
  SAs learned from this peer: 0
  Number of connection transitions to Established state: 1
    Input queue size: 0, Output queue size: 0
  MD5 signature protection on MSDP TCP connection: not enabled
  Message counters:
    RPF Failure count: 0
    SA Messages in/out: 10700/10827
    SA Requests in: 0
    SA Responses out: 0
    Data Packets in/out: 0/10