134 BigIron RX Series Configuration Guide53-1001986-01CAM partitioning for the BigIron RX5To globally disable Layer 2 switching on the device, enter commands such as the following.BigIron RX(config)# route-onlyBigIron RX(config)# exitBigIron RX# write memoryBigIron RX# reloadTo re-enable Layer 2 switching globally, enter the following.BigIron RX(config)# no route-onlyBigIron RX(config)# exitBigIron RX# write memoryBigIron RX# reloadSyntax: [no] route-onlyTo disable Layer 2 switching only on a specific interface, go to the Interface configuration level forthat interface, then disable the feature. The following commands show how to disable Layer 2switching on port 3/2.BigIron RX(config)# interface ethernet 3/2BigIron RX(config-if-e10000-3/2)# route-onlySyntax: [no] route-onlyTo re-enable Layer 2 switching, enter the command with “no”.BigIron RX(config-if-e10000-3/2)# no route-onlyCAM partitioning for the BigIron RXIn releases prior to 02.3.00, CAM partitioning was not configurable. Starting in BigIron RX softwarerelease 02.3.00, you can specify the percentage of CAM assigned to each of the CAM entry typesglobally. CAM Partitioning is not required on the device. The default CAM allocations are describedin the following.Resource limitation for BigIron RX hardware: MAC 16K and 512K IPv4 routes and 64K IPv6 routessimultaneously.The number of CAM entries available for ACL, PBR, RL: 1024 Default values.• ACL – 416• Rate Limiting – 416 (Shared with PBR)Other Default number of entries available:• IPv6 Multicast – 192Re-distributing CAM allocationsDepending on the needs of you network, the CAM allocations may need to be re-distributed. Thereare two steps to the command.1. Change the allocation used between the rules + PBR/RL and the IPv6 multicast entries.2. Change the allocation of the ACL rules and the PBR/RL entries.
