PGM Router Assist Commands

This chapter explains the function and syntax of the Pragmatic General Multicast (PGM) commands. For more information about defaults and usage guidelines, see the corresponding chapter of the Cisco IOS IP and IP Routing Command Reference, Release 12.1.

clear ip pgm router

To clear Pragmatic General Multicast (PGM) traffic statistics, use the clear ip pgm router EXEC command.

clear ip pgm router [[traffic [type number]] | [rtx-state [group-address]]]

Syntax Description

traffic [type number]

(Optional) Interface type and number whose PGM traffic statistics are cleared. If no interface type and number are provided, all traffic statistics are cleared.

rtx-state [group-address]

(Optional) IP address of the multicast group whose PGM re-send state is cleared. If no group address is provided, all re-send state is cleared. Clearing re-send state means the router will not forward any retransmissions corresponding to that state.

traffic [type number]	(Optional) Interface type and number whose PGM traffic statistics are cleared. If no interface type and number are provided, all traffic statistics are cleared.
rtx-state [group-address]	(Optional) IP address of the multicast group whose PGM re-send state is cleared. If no group address is provided, all re-send state is cleared. Clearing re-send state means the router will not forward any retransmissions corresponding to that state.

ip pgm router

To enable Pragmatic General Multicast (PGM) Router Assist and thereby allow PGM to operate more efficiently on the router, use the ip pgm router interface configuration command. To disable PGM Router Assist for the interface, use the no form of the command.

ip pgm router

no ip pgm router

Syntax Description

This command has no arguments or keywords.

show ip pgm router

To display Pragmatic General Multicast (PGM) Reliable Transport Protocol state and statistics, use the show ip pgm router EXEC command.

show ip pgm router [[interface [type number]] | [state [group-address]] | [traffic [type number]]][verbose]

Syntax Description

interface type number

(Optional) Displays interfaces on which PGM Router Assist is configured.

state [group-address]

(Optional) Displays PGM re-send state information per TSI. If no group address is specified, re-send state for all groups is shown.

traffic [type number]

(Optional) Displays PGM packet counters. If no interface type and number are specified, traffic on all interfaces is displayed. These statistics do not reflect the number of PGM data packets (ODATA) that are forwarded in a session, because these are forwarded transparently by IP multicast.

verbose

(Optional) Displays extended information about olists, timers, FEC, and DLR.

interface type number	(Optional) Displays interfaces on which PGM Router Assist is configured.
state [group-address]	(Optional) Displays PGM re-send state information per TSI. If no group address is specified, re-send state for all groups is shown.
traffic [type number]	(Optional) Displays PGM packet counters. If no interface type and number are specified, traffic on all interfaces is displayed. These statistics do not reflect the number of PGM data packets (ODATA) that are forwarded in a session, because these are forwarded transparently by IP multicast.
verbose	(Optional) Displays extended information about olists, timers, FEC, and DLR.

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