Specifications

IP Switching Commands
show mls cef ip multicast
ISW-222
Cisco IOS IP Switching Command Reference
May 2008
Command Modes User EXEC
Privileged EXEC
Command History
Usage Guidelines For Cisco 7600 series routers that are configured with a Supervisor Engine 2, the only supported syntax
for the show mls cef ip multicast command is show mls cef ip {multicast tcam [prefix [mask]}
[module
num]].
There are two Multicast Multilayer Switching (MMLS) modes, ingress and egress. The output displayed
differs for each mode.
The hardware-entry types are as follows:
• {S/m,*}—Interface/mask (or subnet) entries that are used to catch a directly connected source.
• {*,G/m}—Groups that are served by the route processors as group/mask.
• {G,C}—G indicates a destination MAC address, which is derived from an IP-multicast address, and
C indicates the ingress VLAN.
• {S,G,C}—S indicates the source IP address, G indicates the destination IP address, which is a
multicast address, and C indicates the ingress VLAN, which is usually the RPF VLAN of the flow.
• {S,G}—Multicast-routing table entry that is maintained by the software or a multicast-forwarding
table entry that is created in the Forwarding Information Base (FIB) table.
• {*,G}—Same as {S,G}, except that the source address is a wildcard.
The designated forwarder (DF) index field ranges from 1 to 4 and is an index into the acceptance
(Protocol Independent Multicast [PIM] Route Processors (RPs) multiplied by the DF) table. The
acceptance table is used with DF forwarding and is used to identify the set of DF interfaces for each of
the four RPs in a VPN.
dst-ip (Optional) Destination IP address.
dst-port (Optional) Layer 4 destination port; valid values are from 0 to 65535.
grp-mask Displays hardware-entry information that is based on Bidir (*,G/m) shortcuts.
vpn vpn-id Displays hardware-entry information that is based on the specified VPN ID;
valid values are from 0 to 4095.
Release Modification
12.2(14)SX Support for this command was introduced on the Supervisor Engine 720.
12.2(17d)SXB Support for this command on the Supervisor Engine 2 was extended to
Cisco IOS Release 12.2(17d)SXB.
12.2(33)SRA This command was integrated into Cisco IOS Release 12.2(33)SRA.