Hands-On Lab
327
7.
Notice that the 2621A router is the active router (local) and that
2501A is the standby. This is because the 2621A router was config-
ured first. Both have a priority of 100, hello time of 3 seconds, and
holdtime of 10 seconds.
8.
Type the debug standby command on the 2621A router to view the
hello messages being sent and received on the router's F0/0 interface.
2621A#debug stand
Hot standby protocol debugging is on
2621A#
00:16:48: SB1:FastEthernet0/0 Hello in 172.16.10.5
Standby pri 100 hel 3 hol 10
ip 172.16.10.50
00:16:51: SB1:FastEthernet0/0 Hello out 172.16.10.1
Active pri 100 hel 3 hol 10
ip 172.16.10.50
00:16:51: SB1:FastEthernet0/0 Hello in 172.16.10.5
Standby pri 100 hel 3 hol 10
ip 172.16.10.50
00:16:53: SB1:FastEthernet0/0 Hello out 172.16.10.1
Active pri 100 hel 3 hol 10
ip 172.16.10.50
00:16:54: SB1:FastEthernet0/0 Hello in 172.16.10.5
Standby pri 100 hel 3 hol 10
ip 172.16.10.50
2621#un all
All possible debugging has been turned off
2621A#
9.
Notice that the hello is from 172.16.10.5 and is announcing itself as
a standby router with a priority of 100, a hello time of 3 seconds, and
a holdtime of 10 seconds. Also notice that the 2621A router is sending
out the same information, except that it is advertising itself as the
active router.
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