Nortel Networks 1000E warranty Connecting co-located Call Servers

Connecting CS 1000E system components Page 105 of 488

To separate the redundant Call Servers, the ELAN subnet and the subnet of the High Speed Pipe (HSP) can be extended between the two processors with an Ethernet switch, using Layer 2 protocol.

If the two Call Servers are collocated, they can be connected using a standard CAT5e or CAT6 crossover cable, limited to 100 meters in length.

For detailed information on Campus Redundancy, refer to Communication Server 1000: System Redundancy (553-3001-307).

The Layer 2 switch allows the ELAN subnet and the subnet of the High Speed Pipe (HSP) to be extended between the two processors. The

BayStack 470-24T provides full duplex wire-speed 100BaseT with no significant packet loss (less than 0.001%) and delays of less than 100 usec.

The method used to connect Call Server 0 to Call Server 1 depends on the proximity of the units. If the units are co-located, follow Procedure 12 to connect the Call Servers. If the units are configured for Campus Redundancy, follow Procedure 13 to connect the Call Servers.

Connecting co-located Call Servers

Follow Procedure 12 to connect co-located Call Servers.

Procedure 12

Connecting co-located Call Servers

1Plug one end of the CAT5E RJ-45 crossover cable (NTRC17) into the LAN 2 connector on the front of Call Server 0.

2Plug the other end of the CAT5E RJ-45 NTRC17 crossover cable into the LAN 2 connector on the front of Call Server 1.

End of Procedure

Connecting Campus Redundant Call Servers

The MultiLink Trunking (MLT) feature of the BayStack 470-24T enables the two uplink fiber ports to be grouped but is not solely necessary for the two uplink fiber ports to be linked. Grouping the uplink fiber ports increases aggregate throughput up to 2 Gbps between sides with active redundant links.

Communication Server 1000E Installation and Configuration