Cisco Catalyst 3750 Software Configuration Manual page 781
Metro switch
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Also See for Catalyst 3750:
- Command reference manual (1154 pages) ,
- Hardware installation manual (231 pages) ,
- Message manual (120 pages)
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Chapter 31
Configuring IP Multicast Routing
Figure 31-8
151.16.0.0/16
172.34.15.0/24
202.13.3.0/24
176.32.10.0/24
176.32.15.0/24
Src Network
151.16.0/16
172.34.15.0/24 Fa1/0/1 10
202.13.3.0/24
Beginning in privileged EXEC mode, follow these steps to customize the summarization of DVMRP
routes if the default classful autosummarization does not suit your needs. This procedure is optional.
Note
At least one more-specific route must be present in the unicast routing table before a configured
summary address is advertised.
Command
Step 1
configure terminal
Step 2
interface interface-id
Step 3
ip dvmrp summary-address address
mask [metric value]
Step 4
end
Step 5
show running-config
Step 6
copy running-config startup-config
To remove the summary address, use the no ip dvmrp summary-address address mask [metric value]
interface configuration command.
78-15870-01
Only Connected Unicast Routes Are Advertised by Default
DVMRP Report
m = 39
m = 42
m = 40
m = 1
m = 1
DVMRP Route Table
Intf
Metric Dist
Fa1/0/1 7
Fa1/0/1 8
176.32.10.0/24
Purpose
Enter global configuration mode.
Specify the interface that is connected to the DVMRP router, and enter
interface configuration mode.
Specify a DVMRP summary address.
•
•
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Configuring Advanced DVMRP Interoperability Features
DVMRP router
Tunnel
Cisco
router
0
0
Fast
Fast
0
Ethernet
Ethernet
1/0/1
1/0/2
176.32.15.0/24
For summary-address address mask, specify the summary IP
address and mask that is advertised instead of the more specific
route.
(Optional) For metric value, specify the metric that is advertised
with the summary address. The default is 1. The range is 1 to 32.
Catalyst 3750 Metro Switch Software Configuration Guide
interface tunnel 0
ip unnumbered fastethernet1/0/1
interface fastethernet1/0/1
ip addr 176.32.10.1 255.255.255.0
ip pim dense-mode
interface fastethernet1/0/2
ip addr 176.32.15.1 255.255.255.0
ip pim dense-mode
Unicast Routing Table (10,000 Routes)
Network
Intf
Metric
176.13.10.0/24 Fa1/0/1 10514432 90
176.32.15.0/24 Fa1/0/2 10512012 90
176.32.20.0/24 Fa1/0/2 45106372 90
Dist
31-47
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