
26-38
Ethernet Card Software Feature and Configuration Guide, R7.2
January 2009
Chapter 26 Configuring IEEE 802.17b Resilient Packet Ring
Characteristics of RI on the ML-Series Card
Figure 26-8 RPR RI
Characteristics of RI on the ML-Series Card
RI on the ML-Series card has these characteristics:
• Supported only on Gigabit Ethernet
• Provisioned by identifying peer RPR MACs as either primary or standby
• Uses an OAM frame to flush the spatially aware sublayer (SAS) table and MAC table at the add
stations
• Provides protection between individual RPRs, including:
–
Two RPRs
–
Two Cisco proprietary RPRs
–
A Cisco proprietary ring and an IEEE 802.17 ring
• Provides card-level redundancy when connected to a switch running EtherChannel
Caution When connecting to a switch running EtherChannel, you must configure rpr-ieee ri foreign on the
primary and secondary ML-Series cards.
GEC
151968
Primary
pair
A
ML1000-2
West East
B
ML1000-2
West East
C
ML1000-2
West East
D
ML1000-2
West East
OC-N
OC-N
Secondary
pair
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