Ethernet Switch CLI Reference Guide
83
CHAPTER 18
DVMRP Commands
This chapter explains how to use commands to activate the Distance Vector Multicast Routing
Protocol (DVMRP) on the Switch.
18.1 DVMRP Overview
DVMRP (Distance Vector Multicast Routing Protocol) is a protocol used for routing multicast
data. DVMRP is used when a router receives multicast traffic and it wants to find out if other
multicast routers it is connected to need to receive the data. DVMRP sends the data to all
attached routers and waits for a reply. Routers which do not need to receive the data (do not
have multicast group member connected) return a “prune” message, which stops further
multicast traffic for that group from reaching the router.
18.2 Command Summary
The following section lists the commands for this feature.
Table 50 Command Summary: DVMRP
COMMAND DESCRIPTION M P
show ip dvmrp group Displays DVMRP group information. E 3
show ip dvmrp interface Displays DVMRP interface information. E 3
show ip dvmrp neighbor Displays DVMRP neighbor information. E 3
show ip dvmrp prune Displays the DVMRP prune information. E 3
show ip dvmrp route Displays the DVMRP routes. E 3
show router dvmrp Displays DVMRP settings. E 3
router dvmrp Enables and enters the DVMRP
configuration mode.
C13
exit Leaves the DVMRP configuration mode. C 13
threshold <ttl-value> Sets the DVMRP threshold value. Multicast
packets with TTL (Time-To-Live) value
lower than the threshold are not forwarded
by the Switch.
C13
no router dvmrp Disables DVMRP on the Switch. C 13
interface route-domain <ip-address>/<mask-
bits>
Enters the configuration mode for this
routing domain.
C13
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