display multicast fast-forwarding cache

Use display multicast fast-forwarding cache to display multicast fast forwarding entries.

Syntax

In standalone mode:

display multicast [ vpn-instance vpn-instance-name ] fast-forwarding cache [ source-address | group-address ] * [ slot slot-number ]

In IRF mode:

display multicast [ vpn-instance vpn-instance-name ] fast-forwarding cache [ source-address | group-address ] * [chassis chassis-number slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters. If you do not specify a VPN instance, this command displays multicast fast forwarding entries on the public network.

source-address: Specifies a multicast source address.

group-address: Specifies a multicast group address in the range of 224.0.1.0 to 239.255.255.255.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays multicast fast forwarding entries for the MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device. The chassis-number argument represents the member ID of the IRF member device. The slot-number argument represents the slot number of the card. If you do not specify a card, this command displays multicast fast forwarding entries for the global active MPU. (In IRF mode.)

Examples

# Display multicast fast forwarding entries on the public network.

<Sysname> display multicast fast-forwarding cache
Total 1 entries, 1 matched

(60.1.1.200, 225.0.0.2)
Status     : Enabled
Source port: 2001                   Destination port: 2002
Protocol   : 2                      Flag            : 0x2
Incoming interface: Vlan-interface1
List of 1 outgoing interfaces:
Vlan-interface2
Status: Enabled               Flag: 0x14

Table 24: Command output

Field

Description

Total 1 entries, 1 matched

Total number of (S, G) entries in the multicast fast forwarding table, and the total number of matching (S, G) entries.

(60.1.1.200, 225.0.0.2)

(S, G) entry.

Protocol

Protocol number.

Flag

Flag of the (S, G) entry or the outgoing interface in the entry.

This field displays one flag or the sum of multiple flags. In this example, the value 0x2 means that the entry has only one flag 0x2. The value 0x14 means that the interface has flags 0x4 and 0x10.

The following flags are available for an entry:

  • 0x1—The entry is created because of packets passed through between cards.

  • 0x2—The entry is added by multicast forwarding.

The following flags are available for an outgoing interface:

  • 0x1—The interface is added to the entry because of packets passed through between cards.

  • 0x2—The interface is added to an existing entry.

  • 0x4—The MAC address of the interface is needed for fast forwarding.

  • 0x8—The interface is an outgoing interface associated with the incoming VLAN.

  • 0x10—The interface is associated with the entry.

  • 0x20—The interface is to be deleted.

Status

Status of the (S, G) entry or the outgoing interface:

  • Enabled—Available.

  • Disabled—Unavailable.

Incoming interface

Incoming interface of the (S, G) entry.

List of 1 outgoing interfaces

Outgoing interface list of the (S, G) entry.

Related commands

reset multicast fast-forwarding cache all