Displaying IP Multicast over Fabric Connect information

Use this procedure to display IP Multicast over Fabric Connect summary information.

Procedure

To enter User EXEC mode, log on to the switch.
Display the status of the global IP Multicast over Fabric Connect configuration:

show isis spbm multicast
Display IP Multicast over Fabric Connect summary information for each S, G, V tuple:

show isis spb-mcast-summary [count][host-name WORD<0–255>][lspid <xxxx.xxxx.xxxx.xx-xx>]
Display information about the multicast routes on the switch:

show ip mroute route[vrf WORD<0–16>][vrfids WORD<0–255>]

Example

Display IP Multicast over Fabric Connect global configuration information:

Switch:1>enable
Switch:1#show isis spbm multicast

                             multicast : enable
                     fwd-cache-timeout(seconds) : 210

Switch:1#show isis spb-mcast-summary 

============================================================================
                            SPB multicast - Summary
============================================================================
SCOPE    SOURCE           GROUP            DATA          LSP  HOST            
I-SID    ADDRESS          ADDRESS          I-SID   BVID  FRAG NAME            
-----------------------------------------------------------------------------
GRT      192.0.2.102     233.252.0.1        16000001  63  0x0  DIST5A          

Switch:1#show ip mroute route

================================================================================
                          Mroute Route - GlobalRouter
================================================================================
GROUP           SOURCE          SRCMASK         UPSTREAM_NBR    IF     EXPIR  PROT
--------------------------------------------------------------------------------
233.252.0.1       0.0.0.0         0.0.0.0         0.0.0.0        V3       30 spb-access
233.252.0.1       198.51.100.99   255.255.255.0   0.0.0.0        -        0  spb-network
 
Total 4

Variable definitions

The following table defines parameters for the show isis spb-mcast-summary command.


Variable	Value
count	Displays the total number of SPB multicast entries.
host-name `WORD<0–255>`	Displays the IP Multicast over Fabric Connect summary information for a specific host-name.
lspid `<xxx.xxx.xxx.xx-xx>`	Displays the IP Multicast over Fabric Connect summary information for the specified LSP ID that you enter in xxx.xxx.xxx.xx-xx — 8 byte format.

The following table defines parameters for the show ip mroute route command.


Variable	Value
vrf `WORD<1–32>`	Specifies a VRF.
vrfids `WORD<0–255>`	Specifies the VRF ID

Job aid

The following table describes the fields in the output for the show isis spbm multicast command.


Parameter	Description
multicast	Specifies if multicast is enabled.
fwd-cache-timeout (seconds)	Specifies the forward cache timeout value in seconds.

The following table describes the fields in the output for the show isis spb-mcast-summary command.


Parameter	Description
SCOPE I-SID	Indicates the I-SID that specifies the multicast streams when the scope is either the Layer 3 VSN or the Layer 2 VSN or any combination.
SOURCE ADDRESS	Indicates the IP multicast source address that maps to the I-SID.
GROUP ADDRESS	Indicates the IP multicast group address that maps to the I-SID.
DATA I-SID	Indicates the data I-SID for the IP multicast route, which includes the source IP address, group IP address, and the local VLAN that the stream is received on (S,G,V tuple). SPBM uses the data I-SID to create the multicast tree.
BVID	Indicates the ID of the SPBM backbone VLAN (B-VLAN) on which the multicast stream forwards in the SPBM cloud.
LSP FRAG	Indicates the fragment number of the LSP ID.
HOST-NAME	Indicates the host name of the router.

The following table describes the fields in the output for the show ip mroute route command.


Parameter	Description
GROUP	Indicates the IP multicast group for this multicast route.
SOURCE	Indicates the network address that, when combined with the corresponding value of SRCMASK, identifies the sources for this multicast route.
SRCMASK	Indicates the network mask that, when combined with the corresponding value of SOURCE, identifies the sources for this multicast route.
UPSTREAM_NBR	Indicates the address of the upstream neighbor from which IP datagrams from these sources to this multicast address are received. The field displays the value of 0.0.0.0 if the (S,G) source is local or if the RP for this the (*,G) group is an address on this router.
IF	Indicates the value of ifindex for the interface that receives IP datagrams sent by these sources to this multicast address. A value of 0 in a (*,G) route indicates that datagrams are not subject to an incoming interface check, but datagrams can be received on any interface.
EXPIR	Indicates the minimum amount of time remaining before this entry ages out. The value 0 indicates that the entry is not subject to aging. Note: The value you configure for fwd-cache-timeout applies only to the locally learned sender; it does not apply to SMLT synchronized sender records.
PROT	Indicates the multicast protocol through which the switch learned this route. The spb-access and spb-network values indicate the stream learned when IP Multicast over Fabric Connect is configured on the VLAN. The spb-access value indicates that it was learned on the access. The spb-network value indicates it was learned over the SPBM cloud.