beautypg.com

2 displaying the multicast forwarding cache – Planet Technology WGS3-2620 User Manual

Page 127

background image

WGS3 Layer 3 Switch User’s Manual

- 119 -

4.6.6.4.2 Displaying the Multicast Forwarding Cache

The switch maintains a cache of multicast routing entries used to calculate the delivery tree in multicast

routing protocols. The Multicast Forwarding Cache includes the subnetwork that contains the multicast

source and the nearest upstream neighbor for each known multicast group address.

Parameter Description

Group Address

An IP multicast group address with subscribers directly attached or downstream

from this switch.

Source Address

The IP subnetwork at the root of the multicast delivery tree. This subnetwork

contains a known multicast source.

Mask

Subnet mask that is used for the source address. This mask identifies the host

address bits used for routing to specific subnets.

Upstream Nbr

The IP address of the network device immediately upstream for this group.

Protocol

The multicast routing protocol associated with this entry.

Up Time

The time elapsed since this entry was created.

NOTE: To scroll through the table, use the and buttons. To display a

specific page, set the page number in the Page field and then select .