Cisco Systems OL-7396-01 Manual De Usuario
25-26
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter 25
Configuring ATM Router Module Interfaces
Configuring Bridging
Switch(config)# interface fastethernet 0/0/0
Switch(config-if)# no cdp enable
Switch(config-if)# bridge-group 5
Switch(config-if)# end
Switch(config)# bridge 5 protocol ieee
Configuring Packet Flooding on a PVC
Typically, a specific static map list configuration is not required for bridging to occur. In case of packet
flooding, the bridging mechanism individually sends the packet to be flooded on all PVCs configured on
the interface. To restrict the broadcast of the packets to only a subset of the configured PVCs you must
define a separate static map list. Use the broadcast keyword in the static-map command to restrict
packet broadcasting.
flooding, the bridging mechanism individually sends the packet to be flooded on all PVCs configured on
the interface. To restrict the broadcast of the packets to only a subset of the configured PVCs you must
define a separate static map list. Use the broadcast keyword in the static-map command to restrict
packet broadcasting.
Example
In the following example only PVC 2, 200 is used for packet flooding:
Switch(config)# interface atm 3/0/0
Switch(config-if)# no ip address
Switch(config-if)# no ip directed-broadcast
Switch(config-if)# map-group bg_1
Switch(config-if)# atm pvc 2 200 interface atm 1/0/1 0 200
Switch(config-if)# atm pvc 2 201 interface atm 1/0/1 0 300
Switch(config-if)# bridge-group 5
Switch(config-if)# end
Switch(config)# map-list bg_1
Switch(config-map-list)# bridge atm-vc 200 broadcast
Command
Purpose
Step 1
Switch(config)# interface atm card/subcard/port
Switch(config-if)#
Specifies the interface to configure on the ATM
router module.
router module.
Step 2
Switch(config-if)# no ip address
Disables IP processing.
Step 3
Switch(config-if)# no ip directed-broadcast
Disables the translation of directed broadcasts to
physical broadcasts.
physical broadcasts.
Step 4
Switch(config-if)# map-group number
Enters the map group name associated with this
PVC.
PVC.
Step 5
Switch(config-if)# atm pvc 2 vci-A interface atm
card/subcard/port vpi-B
card/subcard/port vpi-B
Configures a PVC.
Note
The VPI number on the ATM router
module interface must be 2.
module interface must be 2.
Step 6
Switch(config-if)# bridge-group number
Assigns the interface to a bridge group.
Step 7
Switch(config-if)# end
Switch(config)#
Returns to global configuration mode.
Step 8
Switch(config)# map-list name
Switch(config-map-list)#
Creates a map list by naming it, and enters
map-list configuration mode.
map-list configuration mode.
Step 9
Switch(config-map-list)# bridge atm-vc number
broadcast
broadcast
Enables packet flooding on a PVC.