[c-nsp] Link Problem - 6509 to GSR
Robbie.Jacka at amsouth.com
Robbie.Jacka at amsouth.com
Mon Oct 23 10:31:50 EDT 2006
Packets appear to be traversing the link - have you checked the MAC table
on the 6509, or ARP table on the GSR? Checked CDP neighbor status?
robbie
"Paul Stewart"
<pstewart at nexicom
group.net> To
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Subject
[c-nsp] Link Problem - 6509 to GSR
10/23/2006 09:23
AM
I have a weird problem between a 6509 and our GSR router:
On the 6509:
interface GigabitEthernet9/6
switchport
switchport access vlan 30
switchport mode access
no ip address
speed nonegotiate
interface Vlan30
ip address 10.250.250.1 255.255.255.0
core1-rtr-mb#sh interfaces gigabitEthernet 9/6
GigabitEthernet9/6 is up, line protocol is up (connected)
Hardware is C6k 1000Mb 802.3, address is 0009.127a.2ce5 (bia
0009.127a.2ce5)
Description:
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, media type is SX
input flow-control is off, output flow-control is on
Clock mode is auto
ARP type: ARPA, ARP Timeout 04:00:00
Last input 2d23h, output 00:00:33, output hang never
Last clearing of "show interface" counters 2d23h
Input queue: 0/2000/0/0 (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
378 packets input, 29833 bytes, 0 no buffer
Received 12 broadcasts (2 multicasts)
35 runts, 0 giants, 0 throttles
35 input errors, 0 CRC, 35 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
1208 packets output, 98465 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 PAUSE output
0 output buffer failures, 0 output buffers swapped out
core1-rtr-mb#sh interfaces vlan30
Vlan30 is up, line protocol is up
Hardware is EtherSVI, address is 0004.defd.f40a (bia 0004.defd.f40a)
Internet address is 10.250.250.1/24
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not supported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:02:07, output 00:00:48, 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
L2 Switched: ucast: 477 pkt, 37840 bytes - mcast: 4 pkt, 290 bytes
L3 in Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes mcast
L3 out Switched: ucast: 0 pkt, 0 bytes
1 packets input, 64 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
15 packets output, 1588 bytes, 0 underruns
0 output errors, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
core1-rtr-mb#ping 10.250.250.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.250.250.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms
On the GSR:
interface GigabitEthernet5/0
ip address 10.250.250.2 255.255.255.0
no ip directed-broadcast
no negotiation auto
core1-gsr-mb#sh interfaces gigabitEthernet 5/0
GigabitEthernet5/0 is up, line protocol is up
Hardware is GigMac GigabitEthernet, address is 0050.e28a.bda9 (bia
0050.e28a.bda9)
Internet address is 10.250.250.2/24
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, rely 255/255, load 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full Duplex, 1000Mbps, link type is force-up, media type is SX
output flow-control is unsupported, input flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 2d23h
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
82 packets input, 18738 bytes, 0 no buffer
Received 75 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 858 multicast, 0 pause input
403 packets output, 27276 bytes, 0 underruns
Transmitted 282 broadcasts
0 output errors, 0 collisions, 8 interface resets
0 babbles, 0 late collision, 0 deferred
3 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out
core1-gsr-mb#ping 10.250.250.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.250.250.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms
BUT.. here's the problem:
core1-gsr-mb#ping 10.250.250.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.250.250.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
This seems like such an easy task... but it's got me baffled why I can't
pass traffic over this link. I've tried two different GigE ports on
both sides.... re-created the VLAN etc. and even made the interface on
the 6509 a layer3 interface directly (without binding a vlan to it) and
can't pass traffic... it's almost gotta be physical but wondering if
anyone has any ideas?? I'm kinda feeling dumb at this point in time when
we have other links between these two devices and they work fine....
Thanks in advance.
Paul
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