Знасит так.. постораюсь изложить суть вопроса. Есть сетка, довольно большая. Есть 3 каталиста 3550g которые выполняю роль опорных. Есть стeки из D-link 3326s к которым подключены пользователи. Каталисты соеденены в кольцо. Стеки подключены к каталистам двумя оптическими концами в разные каталисты.. Везде, и на цисках и на длинках поднят stp. Один канал основной, другой резервный. Для того что бы циска дружила с длинком посоветовали поднять протокол mst. Вот кусок конфига:
spanning-tree mode mst
spanning-tree extend system-id
spanning-tree vlan 1 priority 28672
spanning-tree vlan 1 forward-time 7
spanning-tree vlan 1 max-age 10
!
!
!
interface GigabitEthernet0/1
switchport mode dynamic auto
!
interface GigabitEthernet0/2
switchport mode dynamic auto
.....
interface Vlan1
ip address ххх.ххх.ххх.ххх 255.255.255.0
ip route-cache flow
!
router rip
network ххх.ххх.ххх.ххх
!
ip default-gateway ххх.ххх.ххх.ххх
ip classless
ip http server
ip flow-export version 5 origin-as
ip flow-export destination ххх.ххх.ххх.ххх 9996
!
!
Ситуация в следующем: Те порты которыми каталисты соеденены друг с другом почемуто отключены. т.е каталисты сами отрубили эти порты, но вот по какой причине? sh int выдает следующее:
GigabitEthernet0/1 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 000f.23a9.7a01 (bia 000f.23a9.7a01)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, link type is auto, media type is SX
output flow-control is off, input flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:01, output 00:00:05, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 34000 bits/sec, 27 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
156810037 packets input, 1213040666 bytes, 0 no buffer
Received 137222099 broadcasts (0 multicast)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 12780391 multicast, 0 pause input
0 input packets with dribble condition detected
195864109 packets output, 1644095077 bytes, 72232480 underruns
0 output errors, 0 collisions, 1 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 PAUSE output
72232480 output buffer failures, 0 output buffers swapped out
GigabitEthernet0/2 is down, line protocol is down (err-disabled)
Hardware is Gigabit Ethernet, address is 000f.23a9.7a02 (bia 000f.23a9.7a02)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto-duplex, Auto-speed
input flow-control is off, output flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
Last input 1d00h, output 1d00h, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
155893586 packets input, 1921404125 bytes, 0 no buffer
Received 99956833 broadcasts (0 multicast)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 3955426 multicast, 0 pause input
0 input packets with dribble condition detected
236415044 packets output, 2035123296 bytes, 112534483 underruns
0 output errors, 0 collisions, 1 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 PAUSE output
112534483 output buffer failures, 0 output buffers swapped out
GigabitEthernet0/3 is down, line protocol is down (err-disabled)
Hardware is Gigabit Ethernet, address is 000f.23a9.7a03 (bia 000f.23a9.7a03)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto-duplex, Auto-speed
input flow-control is off, output flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
Last input 1d00h, output 1d00h, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
14269111 packets input, 3140224477 bytes, 0 no buffer
Received 2992310 broadcasts (0 multicast)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 348452 multicast, 0 pause input
0 input packets with dribble condition detected
255648 packets output, 30188446 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
собственно меня интересует вот это:GigabitEthernet0/3 is down, line protocol is down (err-disabled)
Что это значит и как бороться.. сетка вроде не падает и работает и все же хотелось бы понять где чего не правильно настроено.
sh spanning-tree
MST00
Spanning tree enabled protocol mstp
Root ID Priority 32768
Address 0005.5d1b.a220
Cost 60000
Port 8 (GigabitEthernet0/8)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32768 (priority 32768 sys-id-ext 0)
Address 000f.23a9.7a00
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- ------------------------
Gi0/1 Altn BLK 20000 128.1 P2p Bound(STP)
Gi0/4 Desg FWD 20000 128.4 P2p Bound(STP)
Gi0/5 Altn BLK 20000 128.5 P2p Bound(STP)
Gi0/6 Altn BLK 20000 128.6 P2p Bound(STP)
Gi0/7 Desg FWD 20000 128.7 P2p
Gi0/8 Root FWD 20000 128.8 P2p Bound(STP)
Gi0/9 Altn BLK 20000 128.9 P2p Bound(STP)
Gi0/10 Altn BLK 20000 128.10 P2p Bound(STP)
sh spanning-tree summary totals
Switch is in mst mode
Root bridge for: none
EtherChannel misconfiguration guard is enabled
Extended system ID is enabled
Portfast is disabled by default
PortFast BPDU Guard is disabled by default
Portfast BPDU Filter is disabled by default
Loopguard is disabled by default
UplinkFast is disabled
BackboneFast is disabled
Pathcost method used is short
Name Blocking Listening Learning Forwarding STP Active
---------------------- -------- --------- -------- ---------- ----------
1 mst 5 0 0 3 8
Буду очень признателен за помощь. Спасибо.
Вариант для распечатки
Маршрутизаторы CISCO и др. оборудование. (Public)
(ok) on
03-Фев-05, 10:20 (MSK)
