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FAQ-Why eth-trunk errors increasing but trunkmember interface no errors

Publication Date:  2012-07-27 Views:  38 Downloads:  0
Issue Description
Q: Why eth-trunk errors conter keep increasing, but its member links CRC error counter no increasing?
For example,
display interface brief

PHY: Physical
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
(b): BFD down
(e): EFM down
(d): Dampening Suppressed
InUti/OutUti: input utility/output utility
Interface PHY Protocol InUti OutUti inErrors outErrors
Aux0/0/1 down down 0% 0% 0 0
Eth-Trunk1 down down 0% 0% 4016630 0
GigabitEthernet6/1/0(10G) *down down 0% 0% 28 0
GigabitEthernet15/0/0(10G) *down down 0% 0% 0 0




Alarm Information
NULL


Handling Process
A: When meet such problem, please try to check member interfaces with "display wan interface", SDH error cannot be seen with “display interface”. If there are SDH errors, please check transimission, SFP or fibres.
For example,
display wan interface GigabitEthernet 6/1/0

GigabitEthernet6/1/0 current state:Administratively DOWN
Line protocol current state:UP
Physical layer is Packet Over SDH
Scramble enabled, clock master, CRC-32, loopback: none
WAN full-duplex mode ,Pause Flowcontrol:Receive Enable and Send Enable
SDH alarm:
section layer: OOF LOF
line layer: LAIS
path layer: PPLM
SDH error:
section layer: B1 1356498
line layer: B2 1380621 REI 11304
path layer: B3 1279483 REI 115740
WAN Alarm : none
Last 300 seconds input rate 0 bits/sec, 0 packets/sec
Last 300 seconds output rate 0 bits/sec, 0 packets/sec
Input: 394954 packets, 47395894 bytes
Input error: 0 shortpacket, 0 longpacket, 27 CRC, 0 lostpacket
Output: 343239 packets, 30687704 bytes
Output error: 0 lostpackets




Root Cause
NULL


Suggestions
NULL


END