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ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter 7 Configuring Virtual Connections
Configuring Backup Addresses for Soft PVC and Soft PVP Connections
Figure 7-9 Redundant Soft PVC Destinations, Single Switch Example
Using this redundant configuration, if the active interface, ATM 1/1/0, fails for any reason or is
shutdown, the calls are released and subsequently setup on the standby interface, ATM 1/1/1.
Redundant Soft VC Destinations on Different Switches
After using the soft redundancy group command to configure the NSAP address on an ATM interface
the 19-byte prefix of the NSAP address is advertised over the PNNI. If the active and standby interfaces
are configured on different switches using the same 19-byte prefix of that NSAP address, two entries
appear in the ATM routing table at all nodes in PNNI network.
For example, using the show atm soft redundancy command on Switch-A with redundant destinations
configured shows the following:
• Group name: TEST-2
• NSAP address: 47.0091.8100.1111.1111.1111.1111.1111.1111.1111.00
• Redundant standby interface: ATM 2/0/3
Switch-A# show atm soft redundancy group
Group Name: TEST-2
Nsap Address: 47.0091.8100.1111.1111.1111.1111.1111.1111.1111.00
Operating Mode: Active/Standby
Configured Active Interface:
Configured Standby Interface: ATM2/0/3 (Status: Up)
For example, using the show atm soft redundancy command on Switch-B with redundant destinations
configured shows the following:
• Group name: TEST-2
• NSAP address: 47.0091.8100.1111.1111.1111.1111.1111.1111.1111.00
• Redundant active interface: ATM 2/0/3
Switch-B# show atm soft redundancy group
Group Name: TEST-2
Nsap Address: 47.0091.8100.1111.1111.1111.1111.1111.1111.1111.00
Operating Mode: Active/Standby
Configured Active Interface: ATM2/0/3 (Status: Up)
Configured Standby Interface:
DSLAM
C8540-1
atm1/1/0
atm 1/1/1
Setup call to:
47.0091.8100.0000.1111.
1111.1111.1111.1111.1111.00
atm 1/1/0 (active):
47.0091.8100.0000.1111.
1111.1111.1111.1111.1111.00
atm 1/1/1 (standby):
47.0091.8100.0000.1111.
1111.1111.1111.1111.1111.00
ATM PNNI
network
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