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Webcast-Catalyst9k
New Member

ISDN backup with Frame Relay

ISDN line can going up when the Frame Relay is down, but when the Frame Relay coming back, the ISDN could not going down automatically, AS5350 lost OSPF from router, and established static route. When manually deleted the static route, ISDN then going down and network working on Frame Relay. The AS5350 is running c5350-is-mz.123-11.T10.bin. any idea for this issue?

Thanks

1 REPLY
Cisco Employee

Re: ISDN backup with Frame Relay

Are you running ospf over the isdn connection? Why not just a static route with a higher admin distance.

If the static is configured with a higher admin distance, the traffic should prefer the ospf route once the frame-relay comes backup and the isdn should time out and disconnect.

Hope this helps,

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
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