Cisco 3825 - Permanent Virtual Circuit (PVC) Routing

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Cisco 3825 Mobile Wireless Edge Router Software Configuration Guide
OL-15667-03
Chapter 1 Overview of the Cisco 3825 Mobile Wireless Edge Router
New Features in Cisco IOS Release 12.4(16)MR
interface ATM0/IMA0
no ip address
atm bandwidth dynamic
atm umts-iub
no atm ilmi-keepalive
pvc 2/1
encapsulation aal0
!
pvc 2/2
encapsulation aal0
!
umts-iub local 20.20.20.21 6666
umts-iub remote 20.20.20.20 6666
Note The above sample configuration has one IMA shorthaul with two member links (atm0/0/0 and atm
0/0/1).
The output for the show umts-iub peering command has also changed and will look like the following:
Router#show umts peer
UMTS-Iub(ATM0/IMA0 - ATM0/IMA0): Peering Information
UMTS-Iub(ATM0/IMA0 - ATM0/IMA0): Local (20.20.20.21:6666) States:
UMTS-Iub(ATM0/IMA0 - ATM0/IMA0): Connect State: OPEN
UMTS-Iub(ATM0/IMA0 - ATM0/IMA0): Redundancy State: ACTIVE
UMTS-Iub(ATM0/IMA0 - ATM0/IMA0): Version: 4
UMTS-Iub(ATM0/IMA0 - ATM0/IMA0): Alarm State:
UMTS-Iub(ATM0/0/0 - ATM0/0/0): RX(NO ALARM) TX(NO ALARM)
UMTS-Iub(ATM0/0/1 - ATM0/0/1): RX(NO ALARM) TX(NO ALARM)
UMTS-Iub(ATM0/IMA0 - ATM0/IMA0): Remote (20.20.20.20:6666) States:
UMTS-Iub(ATM0/IMA0 - ATM0/IMA0): Version: 4
UMTS-Iub(ATM0/IMA0 - ATM0/IMA0): Alarm State:
UMTS-Iub(ATM0/0/0 - ATM0/0/0): RX(NO ALARM) TX(NO ALARM)
UMTS-Iub(ATM0/0/1 - ATM0/0/1): RX(NO ALARM) TX(NO ALARM)
Note In the previous output, the local shorthaul/interface name appears before the dash (–), and the remote
shorthaul/interface name appears after the dash (–).
Permanent Virtual Circuit (PVC) Routing
PVC Routing allows you to offload PVC traffic from a physical ATM shorthaul to an alternate backhaul.
For each alternate backhaul, you will need to create a logical shorthaul by creating an ATM
sub-interface. Traffic from the PVCs configured under this logical shorthaul will go through the
corresponding alternate backhaul. Three new commands are added using the Sub-interface
Configuration mode for this new feature: atm umts, umts local, and umts remote (see the
“Configuring
PVC Routing (HSDPA Offload)” section on page 4-41 and Appendix A, “Cisco 3825 Mobile Wireless
Edge Router RAN-O Command Reference”).
A sample configuration is written as follows:
interface ATM0/IMA0
no ip address
atm umts-iub
no atm ilmi-keepalive
pvc 2/1
encapsulation aal0
!
pvc 2/2