SNMP MIBs and Traps, and RMON Alarm Defaults

Table B-6. linkUp and linkDown Variable-Bindings(2 of 2)

Interface

Variable-Bindings

Possible Cause

 

 

 

 

 

Logical Link Sublayer

 

 

 

 

 

 

 

Frame Relay

H ifIndex (RFC 1573)

H linkDown ± LMI is down for

(Supported by the

H ifAdminStatus

the LMI Protocol configured, 2

or Frame Relay link is

media-specific Frame

(RFC 1573)

disabled.

Relay Services MIB.)

 

H ifOperStatus (RFC 1573)

Strings:

 

 

H devLastTrapString

`$ifString down.' No alarms

 

exist on the link due to LMI.

 

(devHealthAndStatus.-

 

 

 

 

mib)

`$ifString LMI down.' No

 

 

alarms exist on the link

 

 

because LMI is down.

 

 

`$ifString administratively

 

 

shutdown.' (Due to an

 

 

intentional shutdown.)

 

 

H linkUp ± LMI is up or Frame

 

 

Relay link is enabled.

 

 

String:

 

 

`$ifString up.'

 

 

 

 

2 If the LMI Protocol is not configured, a linkUp/linkDown trap is based solely upon whether the interface is enabled or disabled.

B-10

March 2000

9664-A2-GB20-00

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Paradyne 9664 manual Logical Link Sublayer, Strings
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9664 specifications

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