IES Features
Page 676 7750 SR OS Services Guide
• Containing group IP interface information
• The SRRP group IP interface redundant IP interface name, IP address and mask
• The SRRP advertisement message SAP
• The local system IP address (SRRP advertisement message source IP address)
• The Group IP interface MAC address
• The SRRP gateway MAC address
• The SRRP instance administration state (up / down)
• The SRRP instance operational state (disabled / becoming-backup / backup / becoming-
master / master)
• The current SRRP priority
• Remote redundant IP interface availability (available / unavailable)
• Local receive SRRP advertisement SAP availability (available / unavailable)
SRRP Instance
The SRRP instance uses the received information to verify provisioning and obtain operational
status of the SRRP instance on the neighboring router.
• SRRP Instance MCS Key on page 676
• Containing Service Type and ID on page 677
• Containing Subscriber IP Interface Name on page 677
• Subscriber Subnet Information on page 677
SRRP Instance MCS Key
The SRRP instance MCS key ties the received MCS information to the local SRRP instance with
the same MCS key. If the received key does not match an existing SRRP instance, the MCS
information associated with the key is ignored. Once an SRRP instance is created and mapped to
an MCS peering, the SRRP instance evaluates received information with the same MCS key to
verify it corresponds to the same peering. If the received MCS key is on a different peering than
the local MCS key an SRRP peering mismatch event is generated detailing the SRRP instance ID,
the IP address of the peering the MCS key is received on and the IP address to which the local
MCS key is mapped. If the peering association mismatch is corrected, an SRRP peering mismatch
clear event is generated.
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