Q. What is the maximum number of HSRP group IDs supported on various Supervisor Engines?
A. This table lists the maximum number of unique HSRP group IDs supported (system wide) on various Supervisor Engines with MSFC1, MSFC2, MSFC3 (Supervisor Engine 720), or MSFC2A (Supervisor Engine 32). The Policy Feature Card 1 (PFC1) or PFC3-equipped Supervisor Engine has a 256 unique HSRP group ID limit. The Policy Feature Card 2 (PFC2)-equipped Supervisor Engine has a 16 unique HSRP group ID limit.
Supervisor Engine Description Maximum Number of Unique HSRP Groups IDs (system wide) WS-X6K-SUP1A-MSFC= Supervisor Engine 1 with PFC1 and MSFC1 256 WS-X6K-S1A-MSFC2= Supervisor Engine 1 with PFC1 and MSFC2 256 WS-X6K-S2-MSFC2= Supervisor Engine 2 with PFC2 and MSFC2 16 WS-X6K-S2U-MSFC2= Supervisor Engine 2 with PFC2 and MSFC2 (with additional DRAM memory) 16 WS-SUP720 Supervisor Engine 720 with PFC3 and MSFC3 256 WS-SUP720-3B Supervisor Engine 720 with PFC3B and MSFC3 256 WS-SUP720-3BXL Supervisor Engine 720 with PFC3BXL and MSFC3 256 WS-SUP32-GE-3B Supervisor Engine 32 with PFC3B and MSFC2A 256 WS-SUP32-10GE-3B Supervisor Engine 32 with PFC3B and MSFC2A 256
Cisco 3750 HSRP Group - HSRP Configuration Guidelines
- HSRP can be configured on a maximum of 32 VLAN or routing interfaces.