24Metro Ethernet Routing Switch 8600 modules
•All modules installed in the chassis must minimally support 128 000 table entries. M modules (8632TXM, 8648TXM, 8608GBM, 8608GTM, 8683POSM, 8672ATME, 8672ATMM, 8681XLR, and 8681XLW modules) support 128 000 table entries.
•M mode must be enabled.
If you enable M mode and one or more of the modules installed in the chassis is an E module (32 000 table entries), the E modules become disabled. This protects the system forwarding tables from losing entries. For information about enabling or disabling M mode, see Managing Platform Operations
If your system has M modules, E modules, or
R mode configuration requirements
R mode supports the Metro Ethernet Routing Switch 8600 R module feature set. Full support of R mode requires the following configuration conditions:
•The system must include only R modules. You can have a system with a mix of R, M, E, or
•The system must include at least one 8692omSF CPU module. R modules do not boot with the 8691omSF CPU module.
•R modules require Metro Ethernet Routing Switch 8600 Release 4.0 or later.
•R mode must be enabled. For information about enabling R mode, see Managing Platform Operations
If the system is currently in default mode or M mode with CPU/SF 1 as the master and CPU/SF 2 as the standby, and you enable R mode on CPU/SF 1, save the configuration and reboot, CPU/SF 2 comes up as the master and CPU/SF 1 as the standby. If you then enable R mode on the new master (CPU/SF 2), the standby (CPU/SF 1) goes offline and remains offline.
For information about how to configure QoS, Filters, Policing, and Shaping on R modules, see Nortel Metro Ethernet Routing Switch 8600 Configuration
— QoS and Traffic Filters (NN46220-508).
Nortel Metro Ethernet Routing Switch 8600
Installation — Modules
4.27 July 2008
