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• Physically connected link (cascade topology only): In a cascade topology, the user must assign an index to each of
the links. This index is used to identify the services per link.
In a single-SCE Platform deployment, the indices of the links cannot be changed by the user and are:
• link-0: the link connected to ports 1 and 2
• link-1: the link connected to ports 3 and 4
In a cascade deployment, the user must define which link is connected to which SCE 2000. The index must be
different for each SCE 2000. In this case the user can choose one of the following:
• Link-0: the link connected to this SCE 2000 is identified as 0.
• Link-1: the link connected to this SCE 2000 is identified as 1.
• Priority (cascade topology only): In a cascade topology, this parameter determines which SCE 2000 is chosen as the
active SCE 2000 in the “active election” procedure. This decision is taken only when both SCE 2000s are starting up
together. If there is one working SCE 2000 and the other is just starting up, then the working one will automatically
be chosen as active and the other one as standby. This parameter can be set to one of the following:
• Primary
• Secondary
• On-Failure behavior: Determines the behavior of the SCE 2000 upon failure, or reboot. One of the following link
modes may be chosen for the SCE 2000 in the cases of failure or reboot:
• Bypass: traffic is bypassed using the internal bypass card.
• Cutoff: the link is forced down.
• Admin status after abnormal reboot: This parameter determines whether the SCE 2000 returns to full operational
mode after abnormal (not user-requested) boot, or stays in non-operational mode, in which the SCE 2000 behaves as
in failure mode. This parameter can be set to one of the following:
• Operational
• Non-operational
The procedure described below is a presentation of all the questions in the topology configuration. In actual practice, all
questions may not be presented for a particular configuration, depending on the topology deployed.
Study the examples that follow to understand the procedure for various topologies.
To configure topology dependent parameters, complete the following steps:
Step 1 Enter the topology configuration menu.
Would you like to enter the Topology configuration menu? [no]: y
Type y and press Enter.
The topology configuration dialog begins.
Step 2
Specify the connection mode.
• To define inline connection mode, press Enter.
• To define receive-only connection mode, type 2 and press Enter.