342
C
HAPTER
14: IP M
ULTICAST
ip multicast dvmrp
Layer 2
Switching
Modules
✓
Multilayer
Switching
Modules
cache
Displays the DVMRP cache, which is a collection of information about the
IP multicast packets that have been processed by the Multilayer Switching
Module.
Valid Minimum Abbreviation
ip m d c
Options
Fields in the IP Multicast DVMRP Cache Display
Prompt
Description
Possible Values
[Default]
Multicast
source address
Source for which you
want to view cache
information
■
Depends on your
network
■
255.255.255.255
to list all sources
255.255.255.255
(factory default),
or current value
Multicast
group address
Multicast group for
which you want to
view cache
information
■
Depends on your
network
■
255.255.255.255
to list all groups
255.255.255.255
(factory default),
or current value
Field
Description
Source
Information about IP multicast sources:
■
Entries preceded by angle brackets (
>
) are
subnetworks that contain sources.
■
Entries without angle brackets are the IP addresses of
source devices.
Group
IP multicast group address of packets coming from the
source and subnetwork to the left.
CTmr
Time since the cache entry was originally recorded. Time is
noted in hours (h), minutes (m), and seconds (s).
Age
Value that indicates the remaining life for the cache entry.
Time is recorded in minutes (m) and seconds (s). The
module assigns a life of approximately 7 minutes to each
entry. When the age if the entry decreases to zero, the
entry either disappears or is refreshed.
PTmr
Time remaining before the module sends a prune
message to an upstream router. Time is shown in minutes
(m) and seconds (s). When traffic is actively flowing, a
dash (
-
) indicates that no prune message has been sent
upstream.
Summary of Contents for 4007
Page 1: ...http www 3com com Switch 4007 Command Reference Guide Part No 10013693 Published May 2000...
Page 14: ......
Page 22: ...22 ABOUT THIS GUIDE...
Page 34: ...34 CHAPTER 1 ADMINISTRATION OVERVIEW...
Page 78: ...78 CHAPTER 4 SIMPLE NETWORK MANAGEMENT PROTOCOL SNMP...
Page 100: ...100 CHAPTER 5 ETHERNET PORTS...
Page 174: ...174 CHAPTER 9 RESILIENT LINKS...
Page 322: ...322 CHAPTER 13 VIRTUAL ROUTER REDUNDANCY VRRP...
Page 476: ...476 CHAPTER 16 INTERNET PACKET EXCHANGE IPX...
Page 552: ...552 CHAPTER 18 QUALITY OF SERVICE QOS AND RESOURCE RESERVATION PROTOCOL RSVP...
Page 566: ...566 APPENDIX A TECHNICAL SUPPORT...