Cisco Systems OL-10426-01 Guia do Utilizador descarregar pdf (Página 94)

5-6

Cisco WAN Modeling Tools Guide

OL-10426-01, Rev. A0

Chapter 5 NMT Execute Commands

Optimize Command

Note Optimize is not supported for PNNI Networks.

NMT Command Results

Table 5-4 lists the possible reasons connections are not being routed over links with the route command.

Table 5-4 Possible Causes for Connections not Routed Over Links

Cause Solution

Link has a zero in the keep field. This indicates

the link is a candidate for the optimize command

to add to the network, but it does not exist in the

network and will not be considered by the route

command.

Set the keep field to one or higher.

Link is not enabled for the routing protocol

required by the connection, in either AutoRoute

or PNNI.

Set the PNNI or AR flag to Y in the link table. To

check what protocol the connection requires,

check the RT_Metrics field in the connection

table.

For AutoRoute Least Cost Routing or PNNI, the

Cost field in the Connection table has too low a

maximum value for a route to be found with that

cost or lower.

Raise the value in the cost field of the connection

table, or set it to zero to remove the restriction.

Link is constrained by either the Receive Rate

field, or the VT_Rate field if the link is a Virtual

Trunk.

Raise the values in these fields, or set them to 0 to

remove the restriction.

With AutoRoute, the stat reserve is excluding too

much bandwidth

Reduce the stat reserve fields.

Link is unavailable for this type of connection

because of a restricted media (Satellite, for

example) or the trunk has not been configured for

a specific type of traffic

For AutoRoute, check the Ad field in the

Connection Table to see if that connection must

avoid any link media types. Set this field to blank

for no restrictions. Check the Traffic field in the

Link Table to see what traffic types can travel on

that link. If it is blank, all types are allowed.

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