# Monitoring Summary Information of IPv6 Multicast Routes

#### Purpose

Display a summary of all or specified multicast routes.

- You can specify a multicast group address or both a multicast group address and a multicast source address to display information about a particular multicast forwarding entry.
- You can use the active option to display information for the active multicast routes.
- You can specify the bandwidth threshold along with the active option to display information for the active multicast routes with admission bandwidth greater than the specified bandwidth threshold. The default bandwidth threshold is 4000 bps.

#### Action

To display a summary of all multicast routes:

    host1#show ipv6 mroute summary
    IPv6 Multicast Routing Table

    Group Address   Source Address  RPF route          RPF Iif         #Oifs
    --------------- --------------- ------------------ --------------- -----
    ff0e::1         10:0:0:1:1::    10:0:0:1::/64      ATM2/3.1001     1
    ff0e::1         10:0:0:1:2::    10:0:0:1::/64      ATM2/3.1001     1
    ff0e::1         10:0:0:1:3::    10:0:0:1::/64      ATM2/3.1001     1
    ff0e::1         10:0:0:1:4::    10:0:0:1::/64      ATM2/3.1001     1
    ff0e::1         10:0:0:1:5::    10:0:0:1::/64      ATM2/3.1001     1
    ff0e::1         10:0:0:1:6::    10:0:0:1::/64      ATM2/3.1001     1
    ff0e::1         10:0:0:1:7::    10:0:0:1::/64      ATM2/3.1001     1
    ff0e::1         10:0:0:1:8::    10:0:0:1::/64      ATM2/3.1001     1
    ff0e::1         10:0:0:1:9::    10:0:0:1::/64      ATM2/3.1001     1
    ff0e::1         10:0:0:1:a::    10:0:0:1::/64      ATM2/3.1001     1
    ff0e::1         10:0:0:1:b::    10:0:0:1::/64      ATM2/3.1001     1
    ff0e::1         10:0:0:1:c::    10:0:0:1::/64      ATM2/3.1001     1
    ff0e::1         10:0:0:1:d::    10:0:0:1::/64      ATM2/3.1001     1
    ff0e::1         10:0:0:1:e::    10:0:0:1::/64      ATM2/3.1001     1
    ff0e::1         10:0:0:1:f::    10:0:0:1::/64      ATM2/3.1001     1

    Counts: 16 (S, G) entries
            0 (*, G) entries

#### Meaning

Table 21 lists the show ipv6 mroute summary command output fields.

Table 21: show ipv6 mroute summary Output Fields

Field Name | Field Description
--- | ---
Group Address | IP address of the multicast group
Source Address | IP address of the multicast source
RPF Route | IP address and network mask of the RPF route
RPF Iif | Type and identifier for the incoming interface for the RPF route
#Oifs | Number of outgoing interfaces
Counts | Numbers of types of (S,G) mappings: (S,G)—Number of (S,G) entries (*,G)—Number of (*,G) entries

#### Related Documentation

- Defining IPv6 Static Routes for Reverse-Path Forwarding
- show ipv6 mroute