Cisco ONS 15454 SDH - Cisco Proprietary RPR Cisco IOS Configuration Example; Figure 17-8 Cisco Proprietary RPR Bridge Group

17-16
Cisco ONS 15454 and Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration Guide, R8.0
Chapter 17 Configuring Cisco Proprietary Resilient Packet Ring
Cisco Proprietary RPR Cisco IOS Configuration Example
Figure 17-8 Cisco Proprietary RPR Bridge Group
Caution All Layer 2 network redundant links (loops) in the connecting network, except the Cisco proprietary
RPR topology, must be removed for correct operation. Or if loops exist, you must configure STP/RSTP.
To configure the needed interfaces, perform the following procedure, beginning in global configuration
mode:
Cisco Proprietary RPR Cisco IOS Configuration Example
Figure 17-5 on page 17-9 shows a complete example of a Cisco proprietary RPR Cisco IOS
configuration. The associated Cisco IOS code is provided in Examples 17-1, 17-2, and 17-3. The
configuration assumes that ML-Series card POS ports are already linked by point-to-point SONET/SDH
circuits configured through CTC.
Example 17-1 SPR Station-ID 1 Configuration
ML-Series# show run
bridge irb
interface SPR1
no ip address
no keepalive
spr station-id 1
ML-Series Card
134983
Ethernet
Port 0
Ethernet
Port 1
Bridge Group
POS 0
POS 1
SPR (RPR)
Interface
Command Purpose
Step 1
Router(config)# interface type number
Enters interface configuration mode for the Ethernet
interface joining the bridge group.
Step 2
Router(config-if)# no shutdown
Enables the interface.
Step 3
Router(config-if)# bridge-group
bridge-group-number
Creates the specified bridge group and assigns the bridge
group to the interface. Creating the bridge from the
interface configuration disables STP or RSTP
(spanning-disabled), which is recommended for
Cisco proprietary RPR.
Step 4
Router(config)# interface spr1
Enters interface configuration mode for the SPR
Step 5
Router(config-subif)# bridge-group
bridge-group-number
Associates the SPR interface to the specified bridge
group.