25-32
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter 25
Configuring ATM Router Module Interfaces
Configuring VC Bundling
Figure 25-10 VC Bundle Example Configuration
The following configuration example also provides for flexible VC management within the VC bundle
in the event of a PVC failure, also referred to as VC bumping. Bumping allows traffic assigned to a failed
VC to be redirected to an alternate VC within the VC bundle. In this example, if PVC 2, 200 fails it is
bumped to the VC with IP precedence 3.
The following example configures eight PVCs as members of a VC bundle named
cisco
.
Switch(config)#
interface atm 9/0/0.1 multipoint
Switch(config-subif)#
ip address 1.1.1.9 255.0.0.0
Switch(config-subif)#
bundle cisco
Switch(config-if-atm-bundle)#
protocol ip inarp
Switch(config-if-atm-bundle)#
pvc 2 200 interface atm 0/0/0 2 100
Switch(config-if-atm-member)#
precedence 7
Switch(config-if-atm-member)#
bump explicit 3
Switch(config-if-atm-member)#
pvc 2 201 interface atm 0/0/0 2 101
Switch(config-if-atm-member)#
precedence 6
Switch(config-if-atm-member)#
pvc 2 202 interface atm 0/0/0 2 102
Switch(config-if-atm-member)#
precedence 5
Switch(config-if-atm-member)#
pvc 2 203 interface atm 0/0/0 2 103
Switch(config-if-atm-member)#
precedence 4
Switch(config-if-atm-member)#
pvc 2 204 interface atm 0/0/0 2 104
Switch(config-if-atm-member)#
precedence 3
Switch(config-if-atm-member)#
pvc 2 205 interface atm 0/0/0 2 105
Switch(config-if-atm-member)#
precedence 2
Switch(config-if-atm-member)#
pvc 2 206 interface atm 0/0/0 2 106
Switch(config-if-atm-member)#
precedence 1
Switch(config-if-atm-member)#
pvc 2 207 interface atm 0/0/0 2 107
Switch(config-if-atm-member)#
precedence 0
Switch(config-if-atm-member)#
99702
ATM 9/0/0
ARM II
Catalyst 8540
Switch 1
Legend
7-5, 3 = Voice =
4 = Video =
2 = Hi Priority =
1, 0 = Default =
Precedence Application
---------------- ----------------
VPI = 2
VCI
200
201
202
203
ARM II VC Bundle
V
GigabitEthernet
1
1/0/0
ATM 0/0/0