Question # 31
Graceful Restart is supported by what IGPs?
RIPv1 and RIPv2
OSPF
IS-IS
BGP
Comprehensive and Detailed Explanation From Exact Extract:
From Nokia 7750 SR OS Routing Protocols Guide (Graceful Restart Support):
Graceful Restart is supported by OSPF and IS-IS for IGPs.
BGP also supports Graceful Restart (but BGP is not an IGP).
RIPv1 and RIPv2 do not support Graceful Restart.
Thus, correct answers: B, C.
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