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S9300 did not enable DLDP compatible mode caused dldp state abnormal

Publication Date:  2012-11-21 Views:  46 Downloads:  0
Issue Description
1、Tpology:S9300 eth-trunk 0==========link-agg1 S6500
2、S9300 version is V100R002C00SPC200
3、S9300 and S6500 interconnect for aggregation, configure dldp,state is wrong:
<6500>dis dldp
dldp interval 5
dldp work-mode enhance
dldp authentication-mode none
dldp unidirectional-shutdown auto
dldp delaydown-timer 1

The port number with DLDP is 2.
interface Ethernet3/0/17
dldp port state : advertisement
dldp link state : up
The neighbor number of the port is 0.
interface Ethernet3/0/19
dldp port state : advertisement
dldp link state : up
The neighbor number of the port is 0.

<SHCM-PA-CMNET-SW01-cjz9306>dis dldp
DLDP global status: enable
DLDP interval: 5s
DLDP work-mode: enhance
DLDP authentication-mode: none
DLDP unidirectional-shutdown: auto
DLDP delaydown-timer: 1s
The number of enabled ports is: 2.
The number of global neighbors is: 0.

Interface GigabitEthernet5/0/4
DLDP port state: advertisement
DLDP link state: up
The neighbor number of the port is: 0.

Interface GigabitEthernet5/0/6
DLDP port state: advertisement
DLDP link state: up
The neighbor number of the port is: 0.
Alarm Information
NULL
Handling Process
1、Check for configuration and no failure;
2、Check S9300 that it has sending packet but no receiving packet:
<SHCM-PA-CMNET-SW01-cjz9306>dis dldp statistics
Interface : GigabitEthernet5/0/4
Packets sent: 375
Packets received: 0
Invalid packets received: 0
Loop packets received: 0
Authentication failed packets received: 0
Valid packets received: 0

Interface : GigabitEthernet5/0/6
Packets sent: 374
Packets received: 0
Invalid packets received: 0
Loop packets received: 0
Authentication failed packets received: 0
Valid packets received: 0
3、deb fiound S6500 and S9300 send packet, but it did not receive packet;
4、Update S9300 to V100R006 version,dldp state is abnormal;
5、The both sides send packet, but they cannot receive peer side packet, it doubts that 2 device dldp is not compatible;
6、Configure command dldp compatible-mode enable to enable dldp compatible mode, the state was normal:
interface Ethernet3/0/19
dldp port state : advertisement        
dldp link state : up
The neighbor number of the port is 1.
        neighbor mac address : 0018-82e4-2f44
        neighbor port index : 37
        neighbor state : two way
        neighbor aged time : 239

Interface GigabitEthernet5/0/6
DLDP port state: advertisement
DLDP link state: up
The neighbor number of the port is: 1.
   Neighbor mac address:000f-e27c-3de4
   Neighbor port index:162
   Neighbor state:two way
   Neighbor aged time:174

7、The version before S9300 V100R006 does not have the command,so it cannot configure dldp compatible mdoe for interconnection with S6500 dldp packet.

Root Cause
1、Configuration problem
2、DLDP packet interact failure caused state wrong.
3、2 device dldp protocol cannot be compatible.
Suggestions
NULL

END