Cisco 15327 User Manual Page 268

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17-16
Ethernet Card Software Feature and Configuration Guide, R7.2
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.
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