Packet Loss And Crc Errors And Changes Of Interface State - H3C SR6600 Configuration Manual

Solution
Make sure that the remote node supports the same application as configured on the local node. For
example, if the local node uses PPPoA, the remote node should also use PPPoA.
If the remote node supports the same application configured on the local node, make sure that the two
sides use the same type of AAL5 encapsulation protocol. For example, if one side uses SNAP whereas
the other uses MUX, they cannot communicate. You can enable the packet debugging function of ATM
to get some clues.

Packet Loss and CRC Errors and Changes of Interface State

Symptom
Two routers are connected back-to-back, and a ping between them is successful, but sometimes there
are large amount of packets lost and frequent CRC errors, or the interface state alternates between UP
and DOWN.
Solution
Check the ATM interfaces of the two nodes to see if their types are the same, namely, both are
multimode fiber interface or both are single mode fiber interface. If their types are different, you should
change one of them. In most cases, when a multimode fiber interface and a single mode fiber interface
are directly connected, they can communicate, but sometimes with the above-mentioned faults.
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