Examples; Example 1; Link Mode - Cisco SCE 2000 Quick Start Manual

Chapter 8 Installing a Cascaded System
From the SCE 2000 (config if)# prompt, type connection-mode
Step 1
inline-cascade/receive-only-cascade[physically-connected-links {link-0/link-1}]}] [priority
{primary/secondary}] [on-failure {bypass/cutoff}] and press Enter.

Examples

EXAMPLE 1

Use the following command to configure the primary SCE platform in a two-SCE platform inline
topology. Link 1 is connected to this SCE platform and the behavior of the SCE platform if a failure
occurs is bypass .
SCE 2000(config if)#connection-mode inline-cascade physically-connected-links link-1
priority primary on-failure bypass
EXAMPLE 2
Use the following command to configure the SCE platform that might be cascaded with the SCE
platform in Example 1. This SCE platform would have to be the secondary SCE platform, and Link 0
would be connected to this SCE platform, since Link 1 was connected to the primary. The connection
mode would be the same as the first, and the behavior of the SCE platform if a failure occurs is also
bypass.
SCE 2000(config if)# connection-mode inline-cascade physically-connected-links link-0
priority secondary on-failure bypass

Link Mode

The SCE platform has an internal hardware card used to maintain the links even when the SCE platform
fails. This hardware card has four possible modes of operation:
•
•
•
•
Normally, the link mode is selected by the SCE platform software according to the configured
connection-mode. However, the link-mode command can be used to enforce a specific desired mode.
This may be useful when debugging the network, or in cases where we would like the SCE platform just
to forward the traffic. (Note that this is only relevant to inline topologies even though the configuration
is available also when in receive-only mode.)
The following link mode options are available:
•
•
OL-7820-06
bypass
forwarding
cutoff
sniffing
Forwarding — forwards traffic on the specified link to the SCE platform for processing.
Bypass — stops all forwarding of traffic on the specified link to the SCE platform. Traffic still flows
on the link, but is not processed in any way by the SCE platform.
This does not affect the redundancy states.
Cisco SCE 2000 4xGBE Quick Start Guide
Link Mode
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