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Enable or Disable the SSE
Configuring Source-Route Bridging BC-141
Enable or Disable the SSE
The Silicon Switch Engine (SSE) acts as a programmable cache to speed the switching of packets.
To enable or disable the SSE, use one of the following commands in interface configuration mode:
Establish the Connection Timeout Interval
It may be necessary to adjust timeout intervals in a complex topology such as a large multihop WAN
with virtual rings or satellite links. The timeout interval is used when a connection to a remote peer
is attempted. If the timeout interval expires before a response is received, the connection attempt is
aborted.
To set the connection timeout interval, use the following command in global configuration mode:
Optimize Explorer Processing
Efficient explorer processing is vital to the operation of SRB. The default configuration is
satisfactory for most situations. However, there might be circumstances that create unexpected
broadcast storms. You can optimize the handling of explorer frames, thus reducing processor
overhead and increasing explorer packet throughput. Optimizing explorer processing enables the
router to perform substantially better during explorer broadcast storms.
In networks with redundant topologies—two or more routers connected to the same set of Token
Rings and doing source-route bridging—a station on one Token Ring trying to get to a station on
another Token Ring may choose a less than optimal route through unnecessary routers, causing
explorer storms due to excessive forwarding of explorer frames. For example, in the redundant
topology example shown in Figure 54, if Station X on Token Ring 1 attempts to get to Station Z on
Token Ring 4 by going through Router A, Token Ring 2, and Router B—a less than optimal route,
excessive forwarding of explorer frames may cause explorer storms.
Command Purpose
source-bridge route-cache sse Enable the SSE function.
no source-bridge route-cache sse Disable the SSE function.
Command Purpose
source-bridge connection-timeout seconds Set the connection timeout interval.