June 2003
Intermediate to advanced
504 pages
12h 29m
English
Content preview from MPLS and VPN Architectures, Volume II
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Providing Dial Backup for MPLS VPN Access
Dial backup protection for a primary CE router/PE router link can be provided easily by using either of the dial-in architectures (VPDN or Direct ISDN) that were previously discussed. The primary and backup links normally reside on the same CE router. Consider the scenario shown in Figure 2-18. The EuroBank San Francisco CE router has a primary connection terminating on the San Jose PE router. The primary link is protected by a backup interface that can use either VPDN (L2TP) or direct ISDN dial to establish a backup link to the EuroBank VRF.
Figure 2-18. Dial Backup for FastFoods San Jose
If the primary ...
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