2140 ExtremeWare Software 7.3.0 Command Reference Guide
Troubleshooting Commands
configure debug-trace dvmrp-cache
configure debug-trace dvmrp-cache <debug level> vlan <vlan name>
Description
This command records debug information to the syslog.
Syntax Description
Default
The default level is 0.
Usage Guidelines
The
debug level
range is 0 to 5. Higher levels record more verbose messages. Higher levels also record
the messages recorded at lower levels.
Use this command to trace the detailed process of adding, deleting, and modifying a multicast cache.
The IP multicast cache is a hardware forwarding entry identified by a ptag index number. The following
command displays the cache entries:
show ipmc cache [detail] <IP multicast group>
The trace is based on the ingress VLAN of a cache. Use this tool if the egress list of a cache is incorrect,
if there are missing cache entries, or if the DVMRP task has been intermittently suspended.
Example
The following command sets the reporting level for DVMRP cache errors to 3:
configure debug-trace dvmrp-cache 3 vlan v49
Following is the log output at this level:
<INFO:SYST> serial admin: configure debug-trace dvmrp-cache 4 vlan v49
<DBUG:DVMR> dvcareq.c 698: Remove Cache for (192.168.3.0,224.2.127.254)
<DBUG:DVMR> dvcareq.c 698: Remove Cache for (192.168.3.0,239.1.1.1)
<DBUG:DVMR> dvcareq.c 213: Build Cache for (192.168.3.10,239.1.1.1)
<DBUG:DVMR> dvcareq.c 213: Build Cache for (192.168.3.10,224.2.127.254)
<DBUG:DVMR> dvcareq.c 596: dvmrp mask del interface 6 in
239.1.1.1/192.168.3.0/255.255.255.0
debug level Specifies a debug level:
0 — Records error messages.
1 — Records warnings.
2 — Records verbose warnings.
3 — Displays a dump of each packet.
4 — No additional information recorded.
5 — No additional information recorded.
vlan name Specifies a VLAN name.
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