Avaya Configuring IP Services Manual de usuario Pagina 98

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Configuring IP Services
4-22 117356-A Rev. A
Enabling ISP Mode on the Router
IP provides an Internet Service Provider (ISP) mode of operation. In ISP mode, IP
Enables the BGP soloist. By default, BGP runs on all slots configured with IP
interfaces. In ISP mode, BGP runs as a soloist.
Disables IP forwarding caches. By default, IP maintains a forwarding cache
on each IP interface. IP maintains this table as a cache for routes that are
frequently used to forward data packets that arrive on the interface. However,
if the number of frequently-used routes exceeds the size of the forwarding
table, the router continually updates the forwarding cache by removing old
routes and installing new route entries. ISP mode disables all forwarding
caches on all IP interfaces and optimizes the routing table to allow direct
forwarding, avoiding the overhead of cache misses and cache updates. If you
choose ISP mode, you do not have to explicitly disable the forwarding tables
on each interface.
The following parameter settings also help optimize the router’s performance and
operation:
By default, ISP mode features are disabled on the router. You can use the BCC or
Site Manager to enable and disable ISP mode as required.
IP Global Parameter Setting
Route Filter Support Disabled
Maximum Policy Rules Set as required
Estimated Networks Set as required
ICMP Redirects Set to off at router interconnection points
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