Stateful Switchover.pdf - Cisco Learning Home

Restrictions for Stateful Switchover
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Stateful Switchover
– 8-port OC-3/STM-1c ATM
– 16-port OC-3 POS
• The following Engine-4 line cards are supported:
– 1-port OC-192 POS
– 4-port OC-48 POS
• The following IP Service Engine (ISE) line cards are supported:
– 4-port OC-3c/STM-1c POS/SDH ISE
– 8-port OC-3c/STM-1c POS/SDH ISE
– 16-port OC-3c/STM-1c POS/SDH ISE
– 4-port OC-12c/STM-4c POS/SDH ISE
– 1-port OC-48c/STM-16c POS/SDH ISE
– 4-port channelized OC-12/STM-4 (DS3/E3, OC-3c/STM-1c) POS/SDH ISE
– 1-port channelized OC-48/STM-16 (DS3/E3, OC-3c/STM-1c) POS/SDH ISE
– 4-port OC-12c/STM-4c DPT ISE
Cisco 10000 Series Internet Router Platform Restrictions
• SSO supports TFTP boot operation on the Cisco 10000 series Internet routers.
• The following line cards support SSO and Cisco NSF:
– 6-port Universal (Channelized or Clear-channel) DS3
– 8-port E3/DS3
– 1-port OC-12 POS
– 6-port OC-3 POS
– 1-port Gigabit Ethernet
– 1-port Channelized OC-12
– 4-port Channelized STM1
– 24-port channelized E1/T1
– 1-port OC-12 ATM
– 4-port OC-3 ATM
Stateful Switchover
Cisco 7500 Series Internet Router Platform Restrictions
• SSO does not support TFTP boot operation on the Cisco 7500 series Internet routers. The software
images must be downloaded to the Flash memory cards on the router.
• SSO operates only on a Cisco 7500 series Internet router that has VIPs as the port adapters. Systems
with legacy interface processors not compatible with RPR+ or SSO mode will always get reset and
reloaded upon switchover.
• To support SSO, a router must have either a combination of two RSP8 and RSP16 devices or a
combination of RSP2 and RSP4 devices. A combination of RSP8 or RSP16 with RSP2 or RSP4
devices on a platform is not supported. Only the Cisco 7507 and Cisco 7513 support dual processors,
which is required to support SSO.