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Apply a Password to an LNM Reporting Link
Configuring Source-Route Bridging BC-131
To enable other LRMs to change router parameters, use the following command in interface
configuration mode:
Apply a Password to an LNM Reporting Link
Each reporting link has its own password that is used not only to prevent unauthorized access from
an LRM to a bridge but to control access to the different reporting links. This is important because
it is possible to change parameters through some reporting links.
To apply a password to an LNM reporting link, use the following command in interface
configuration mode:
Enable LNM Servers
As in an IBM bridge, the router provides several functions that gather information from a local Token
Ring. All of these functions are enabled by default, but also can be disabled. The LNM servers are
explained in the section “How a Router Works with LNM” earlier in this chapter.
To enable LNM servers, use one or more of the following commands in interface configuration
mode:
Change Reporting Thresholds
The Cisco IOS software sends a message to all attached LNMs whenever it begins to drop frames.
The threshold at which this report is generated is based on a percentage of frames dropped compared
with those forwarded. This threshold is configurable, and defaults to a value of 0.10 percent. You can
configure the threshold by entering a single number, expressing the percentage loss rate in
hundredths of a percent. The valid range is 0 to 9999.
To change reporting thresholds, use the following command in interface configuration mode:
Command Purpose
lnm alternate number Enable a LRM other than that
connected through link 0 to change
router parameters.
Command Purpose
lnm password number string Apply a password to an LNM
reporting link.
Command Purpose
lnm crs Enable the LNM Configuration
Report Server (CRS).
lnm rem Enable the LNM Ring Error Monitor
(REM).
lnm rps Enable the LNM Ring Parameter
Server (RPS).
Command Purpose
lnm loss-threshold number Change the threshold at which the
Cisco IOS software reports the
frames-lost percentage to LNM.