Hi all, what is significance of slot no of CSC. If we use 2 CSC and 3 SFC When I do OIR of slot 17 CSC ( when MASTER ) we get 3 ping drops for transit traffic through the router. When I do OIR of slot 16 CSC ( when MASTER ) we get lot of ping drops for transit traffic through the router and neighbourships break. Regards Jack.Daniels