I'm guessing P1 and P2 have been transposed in the diagram.
Mike
On 13/08/2012 22:40, Alia Atlas wrote:
In section 5:
When a failure occurs on the link between PE1 and P2, PE1 does not
have an LFA for traffic reachable via P1. Similarly, by symmetry, if
the link between PE2 and P1 fails, PE2 does not have an LFA for
traffic reachable via P2.
Increasing the metric between PE1 and PE2 to allow the LFA would
impact the normal traffic performance by potentially increasing the
latency.
| 100 |
-P2---------P1-
\ /
1000 \ / 1000
PE1---PE2
5
Figure 3: Example SP topology
I think this is probably a typo, where PE1 has no LFA to P2 and
destinations beyond P2 for the failure of link PE1<->P2 and PE2 has no
LFA to P1 for the failure of PE2<->P1.
Alia
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