Technical data

Using Technician Interface Software
8-80
303561-A Rev 00
DVMRP Caches
With the
ip
command, you can examine the contents of the DVMRP cache on any
slot that you specify. To view the DVMRP cache for any DVMRP slot on the
router, enter the
ip
command using the following syntax:
ip dvmrp_caches -s<
slot>
<slot>
is the slot number associated with the DVMRP cache you want to examine.
You must enter a slot number for the
ip dvmrp_caches
command.
Example
The following
ip
command displays the DVMRP cache information only for
slot 2 on the router.
ip dvmrp_caches -s2
group in: slot vif_id pruned/not_pruned
src out: cct[A/I active not]
--------------------- --- --- ------- ---------
224.5.5.2 in: 2 2.0.0 not-pruned.
192.32.30.192/27 out: 4A 3I 1I
224.5.5.3 in: 2 2.0.0 not-pruned.
192.32.30.192/27 out: 4A 3I 1I
224.5.5.4 in: 2 2.0.0 not-pruned.
192.32.30.192/27 out: 4A 3I 1I
224.5.5.5 in: 2 2.0.0 not-pruned.
192.32.30.192/27 out: 4I 3I 1I
224.5.5.6 in: 2 2.0.0 not-pruned.
For each incoming circuit, the
dvmrp_caches
command indicates the incoming
slot number, vif_id (circuit number), the local and remote tunnel IP addresses
(when tunnelling) and if DVMRP has pruned the branch or not. When a branch is
pruned, there are no downstream dependencies for the source/group pair and the
router does not forward traffic. When a branch is not pruned, the router does have
downstream dependencies for the source/group pair and must forward traffic.
For each outgoing circuit, the
dvmrp_caches
command lists the local outgoing
circuit numbers and whether or not they are active (that is, whether or not each
circuit is forwarding traffic). An
A next to a circuit number indicates that the
circuit is active; an
I next to a circuit number indicates that the circuit is inactive.
For more information about DVMRP, see Configuring IP Multicasting and
Multimedia Services.