Port of uplink on PowerConnect 8024F went to the D State down
Hi all
We had a strange behavior on one of our switches PowerConnect 8024F. The uplink port of the device (connected to a port on a Cisco Catalyst 6513 10Gig) came down. The output of 'show interfaces status' looked like this:
Port speed Duplex Neg frothing link Description
Status of the State
--------- ------------------------- ------ ------- ---- ------ ------------
TE1/0/1 cat6500-rz-1 (te11/2) 10000 Full Off D-low idle
TE1/0/2 pc8024-ub-1 (te1, 0, 1) complete 10000 Off place Active
TE1/0/3 pc8024-uv-1 (te1, 0, 1) complete 10000 Off place Active
TE1/0/4 pc5500-naf02n-1 (te1, 0, 1) complete 10000 Off place Active
TE1/0/5 pc5500-naf04n-1 (te1, 0, 1) complete 10000 Off place Active
TE1/0/6 pc5500-naf03-1 (te1, 0, 2) 10000 Full Active Off
TE1/0/7 pc8024-mensa-1 (te1, 0, 1) complete 10000 Off place Active
Defekt TE1/0/8 n/a unknown inactive low Auto
TE1/0/9 pc5500-naf03-2 (te1, 0, 1) complete 10000 Off place Active
TE1/0/10 pc5500-naf03-3 (te1, 0, 1) complete 10000 Off place Active
...
.. and so on. Firmware is 5.1.2.3. We rebooted the device and he returned to normal behavior.
Now, can someone explain to me what the "D-Down" State means? I have not found anything in the documentation and using google not any success.
The configuration of the port looks like the following:
Description ' cat6500-rz-1 (te11/2).
MTU 9216
switchport mode general
switchport general allowed vlan add 4-5, 14, 22-2729-33, 36, 39-41, 43 tag
switchport general allowed vlan add 47,51-52,54-56,58-60,63-64,66,75,78-79 tag
switchport general allowed vlan add 81, 86-90, 93-99, 107, 120, 122 tag
switchport general allowed vlan add 124 132 - 135, 137, 140, 142-143 147-152 154 tag
switchport general allowed vlan add 156-157, 160, 165-166, 171, 173-175 the tag
switchport general allowed vlan add 177-178 180-181, 183, 189, 192, 195-196 the tag
switchport general allowed vlan add 199,201,203-205 207-208 210-212 the tag
switchport general allowed vlan add 219-222 224-225 227-233 235-244 246 tag
switchport general allowed vlan add 248-249, 253, 256, 258-260 262-267 tag
switchport general allowed vlan add 269-272 274-276 278-279, 282, 284, 286-288 the tag
switchport general allowed vlan add 292 295 - 298, 323, 344, 347, 349 tag
switchport general allowed vlan add 354,362,366,370,372,378-380 382-383 385-386 tag
switchport general allowed vlan add 391,399,405,431,443,447 tag
switchport general allowed vlan add 475-476, 485, 488, 511, 522, 584, 700-703 710-714 tag
switchport general allowed vlan add 725,734,838,854-855 909 tag
switchport general allowed vlan add 950 961 - 962, 981, 999, 1234, 1236, 2205, 2218-2220 tag
switchport general allowed vlan add 2222,2233,2414,2417 tag
switchport general allowed vlan add 2506-2507, 2519, 2521, 2621, 2699 tag
Access-group PVST Mac - filter 1
LLDP transmit tlv sys - name sys - cap
LLDP transmit-mgmt
The used mac filter access PVST-group is:
Mac-extended access list filter-PVST
refuse any 0100.0CCC. RCC 0000.0000.0000
allow a full
output
Thanks for reading and suggestions!
Robin
It's all associated spanning-tree protocols. D to the bottom is synonymous with diagnostic downwards, which occurs if more than 15 BPDU per second is received during 3 seconds. The switch closes the port. USL worker task is bound traffic so a big change covering tree cause it's really high.
Tags: Dell Switches
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