Configuration Guide Vol. 3


33.3.2 Checking IPv6 Multicast Extranet

You can use show ipv6 mroute and show ipv6 mcache commands to refer to entries forwarded between VRF by IPv6 multicast extranets. Entries that issue a forwarding request to a different VRF are displayed in incoming with the forwarding request destination VRF ID. In addition, entries that allow forwarding requests from different VRF are displayed in VRF ID in outgoing.

Figure 33-3: Result of executing show ipv6 mroute command
> show ipv6 mroute vrf all group ff15:100::1 source 2001:db8:21::1
Date 20XX/12/10 12:40:30 UTC
Total: 4 routes
VRF: global  Total: 1 route, 1 group, 1 source
 
(S,G) 1 route  --------------------------------------------------
Group Address                       Source Address
ff15:100::1                         2001:db8:21::1
    uptime: 02:00    expires: 02:30    assert: 00:00    flags: FL  protocol SM
    incoming: VRF 2          upstream: Extra  reg-sup: 0s
    outgoing: VLAN0010  uptime 02:30    expires --:--
 
VRF: 2  Total: 1 routes, 1 groups, 1 sources
 
(S,G) 1 route  --------------------------------------------------
Group Address                       Source Address
ff15:100::1                         2001:db8:21::1
    uptime: 02:00    expires: 02:30    assert: 00:00    flags: LV  protocol SM
    incoming: VLAN0020       upstream: 2001:db8:20::2  reg-sup: 0s
    outgoing: global    uptime 02:30
    outgoing: VRF 3     uptime 02:30
    outgoing: VRF 4     uptime 02:30
 
VRF: 3  Total: 1 route, 1 group, 1 source
 
(S,G) 1 route  --------------------------------------------------
Group Address                       Source Address
ff15:100::1                         2001:db8:21::1
    uptime: 02:00    expires: 02:30    assert: 00:00    flags: FL  protocol SM
    incoming: VRF 2          upstream: Extra  reg-sup: 0s
    outgoing: VLAN0030  uptime 02:30    expires --:--
 
VRF: 4  Total: 1 route, 1 group, 1 source
 
(S,G) 1 route  --------------------------------------------------
Group Address                       Source Address
ff15:100::1                         2001:db8:21::1
    uptime: 02:00    expires: 02:30    assert: 00:00    flags: FL  protocol SM
    incoming: VRF 2          upstream: Extra  reg-sup: 0s
    outgoing: VLAN0040  uptime 02:30    expires --:--
 
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Figure 33-4: Result of executing show ipv6 mcache command
> show ipv6 mcache vrf all group ff15:100::1 source 2001:db8:21::1
Date 20XX/12/10 12:42:30 UTC
Total: 4 routes
VRF: global  Total: 1 route
- Forwarding entry  ----------------------------------------------------------
Group Address                            Source Address
ff15:100::1                              2001:db8:21::1
    uptime: 00:20    expires: 02:40    flags: U
    incoming:
        VRF 2
    outgoing:
        VLAN0010
 
VRF: 2  Total: 1 route
- Forwarding entry  ----------------------------------------------------------
Group Address                            Source Address
ff15:100::1                              2001:db8:21::1
    uptime: 00:20    expires: 02:40    flags: U
    incoming:
        VLAN0020
    outgoing:
        VLAN0010      global
        VLAN0030      VRF 3
        VLAN0040      VRF 4
 
VRF: 3  Total: 1 route
- Forwarding entry  ----------------------------------------------------------
Group Address                            Source Address
ff15:100::1                              2001:db8:21::1
    uptime: 00:20    expires: 02:40    flags:D
    incoming:
        VRF 2
    outgoing:
        VLAN0030
 
VRF: 4  Total: 1 route
- Forwarding entry  ----------------------------------------------------------
Group Address                            Source Address
ff15:100::1                              2001:db8:21::1
    uptime: 00:20    expires: 02:40    flags:D
    incoming:
        VRF 2
    outgoing:
        VLAN0040
 
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