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Configuring Bridging Services
3-6 114060 Rev. A
For optimal efficiency, you should use client name caching on the routers that are
nearest to the servers. In this configuration, the router converts frames originated
from the servers and destined for the clients from AREs to SRFs as early as
possible along the path back to the client. Since there may be a large number of
clients on the network, the client name cache could grow quite large. Therefore,
be sure to observe available memory on the router when using this feature.
The primary function of client name caching is to convert name recognized frames
from AREs to SRFs. You can configure the client name cache to age entries
quickly because the name recognized frame is typically returned to the server,
soon after the name query is sent and because clients may be powered off or
moved around the network. Quicker aging of the client name cache may help
reduce the need for large amounts of memory in the router.
Server Name Caching
If you enable server name caching, the source routing bridge caches the source
name and associated RIF found in any name-recognized broadcast frame it
receives. In addition, the source routing bridge uses information cached from
name-recognized broadcast frames to convert name query, datagram, or other
name query STE explorer frames into SRFs.
If you disable server name caching, the source routing bridge cannot cache server
names and RIFs.
For optimal efficiency, you should enable server name caching on the routers that
are nearest to the clients. In this configuration, the router converts frames
originating from the clients and destined for the servers from AREs to SRFs as
early as possible along the path to the server. Server name caching also reduces
the number of broadcasts from multiple clients trying to reach the same server. As
a general rule, server name caching consumes less memory than client name
caching, because a network usually has fewer servers than clients. You can usually
configure the server cache for a longer aging interval than the client cache,
because servers tend to be less mobile than clients.
Datagram RIF Caching
If you enable datagram name caching, the source routing bridge caches the source
name and associated RIF found in any datagram frame it receives. In addition, the
source routing bridge uses information cached from datagram broadcast frames to
convert broadcast name query, name recognized, or other datagram frames into
SRFs.
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