P595 etherchannel报错，求大神帮忙看看

errpt报错，每一分钟报一次（请无视日期，系统日期是13年），但是不影响网络访问：5FC2DD4B   0916164813 I H ent8           PING TO REMOTE HOST FAILED
9F7B0FA6    0916164813 I H ent8           PING TO REMOTE HOST FAILED
5FC2DD4B   0916164713 I H ent8           PING TO REMOTE HOST FAILED
9F7B0FA6    0916164713 I H ent8           PING TO REMOTE HOST FAILED
5FC2DD4B   0916164713 I H ent8           PING TO REMOTE HOST FAILED
9F7B0FA6    0916164613 I H ent8           PING TO REMOTE HOST FAILED
5FC2DD4B   0916164613 I H ent8           PING TO REMOTE HOST FAILED
9F7B0FA6    0916164513 I H ent8           PING TO REMOTE HOST FAILED

errpt -a 如下：---------------------------------------------------------------------------
LABEL:
ECH_PING_FAIL_BCKP
IDENTIFIER:
5FC2DD4B


Date/Time:       Mon Sep 16 16:48:51 2013
Sequence Number: 938520
Machine Id:      00C4761F4C00
Node Id:         wgyxdb1
Class:           H
Type:            INFO
Resource Name:   ent8
Resource Class:  adapter
Resource Type:   ibm_ech
Location:        


Description
PING TO REMOTE HOST FAILED


Probable Causes
CABLE
SWITCH
ADAPTER


Failure Causes
CABLES AND CONNECTIONS



Recommended Actions

CHECK CABLE AND ITS CONNECTIONS

IF ERROR PERSISTS, REPLACE ADAPTER CARD.


Detail Data
FAILING ADAPTER
ent2
SWITCHING TO ADAPTER
PRIMARY
Unable to reach remote host through backup adapter: switching over to primary adapter


---------------------------------------------------------------------------
LABEL:
ECH_PING_FAIL_PRMRY
IDENTIFIER:
9F7B0FA6


Date/Time:       Mon Sep 16 16:48:18 2013
Sequence Number: 938519
Machine Id:      00C4761F4C00
Node Id:         wgyxdb1
Class:           H
Type:            INFO
Resource Name:   ent8
Resource Class:  adapter
Resource Type:   ibm_ech
Location:        


Description
PING TO REMOTE HOST FAILED


Probable Causes
CABLE
SWITCH
ADAPTER


Failure Causes
CABLES AND CONNECTIONS



Recommended Actions

CHECK CABLE AND ITS CONNECTIONS

IF ERROR PERSISTS, REPLACE ADAPTER CARD.


Detail Data
FAILING ADAPTER
PRIMARY
SWITCHING TO ADAPTER
ent2
Unable to reach remote host through primary adapter: switching over to backup adapter





lsdev -Cc adapter如下，木有问题：
ent0           Available 0A-08         Gigabit Ethernet-SX PCI-X Adapter (14106802)
ent1           Available 0C-08         Gigabit Ethernet-SX PCI-X Adapter (14106802)
ent2           Available 0G-08         Gigabit Ethernet-SX PCI-X Adapter (14106802)
ent3           Available 0H-08         Gigabit Ethernet-SX PCI-X Adapter (14106802)
ent4           Available 0M-08         Gigabit Ethernet-SX PCI-X Adapter (14106802)
ent5           Available 0O-08         Gigabit Ethernet-SX PCI-X Adapter (14106802)
ent6           Available 0S-08         Gigabit Ethernet-SX PCI-X Adapter (14106802)
ent7           Available 0T-08         Gigabit Ethernet-SX PCI-X Adapter (14106802)
ent8           Available                   EtherChannel / IEEE 802.3ad Link Aggregation


ent0和ent2组成的etherchannel，ent2为backup adapter。
求大神支招！