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INTERFACE CONNECTION IS DROPPING??

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shug1

shug1

Technical User
Mar 8, 2006
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Im trying to reach a VM server, the address is 10.171.2.51. Im pinging from switch 10.169.1.2 g1/0/3
to switch 10.169.1.11 g0/17 and then that goes to a VM server that is configured 10.171.2.51 gw 10.171.2.1
It will ping successfull twice then die, what do I have setup wrong???

10.171.2.1 IS IN VLAN 54...THAT IS SETUP ON BOTH SWITCHES.


Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.171.2.51, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms
DR-MDF-Stack1#ping 10.171.2.51

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.171.2.51, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms
DR-MDF-Stack1#ping 10.171.2.51

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.171.2.51, timeout is 2 seconds:
.....

DR-MDF-Stack1

interface Vlan54
ip address 10.171.2.1 255.255.255.0
no ip route-cache


interface Port-channel1
description Channel to DR-3050-Bay1
switchport trunk encapsulation dot1q
switchport trunk native vlan 99
switchport trunk allowed vlan 1,2,4,54,55,99,171
switchport mode trunk


interface GigabitEthernet1/0/3
description Cross to DR-3050-Bay2
switchport trunk encapsulation dot1q
switchport trunk native vlan 99
switchport trunk allowed vlan 1,2,4,54,55,99,171
switchport mode trunk
channel-group 1 mode desirable


DR-3020-Bay2

interface Vlan54
ip address 10.171.2.1 255.255.255.0
no ip route-cache


interface Port-channel1
description Channel to DR-MDF-Stack1
switchport trunk encapsulation dot1q
switchport trunk native vlan 99
switchport trunk allowed vlan 1,2,54,55,99,171
switchport mode trunk

interface GigabitEthernet0/17
description Channel to DR-MDF-Stack1
switchport trunk encapsulation dot1q
switchport trunk native vlan 99
switchport trunk allowed vlan 1,2,54,55,99,171
switchport mode trunk
channel-group 1 mode desirable




 
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What happens when you
A)ping from the switch the vm server is connected to
B)Do an extended ping from DR-MDF-Stack1
C)Post a sh int vlan54

Burt
 
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I get the same response when I ping from the switch, it pings successfully twice then dies?

DR-MDF-Stack1#sh int vlan 54
Vlan54 is up, line protocol is up
Hardware is EtherSVI, address is 001d.46c0.0bc7 (bia 001d.46c0.0bc7)
Internet address is 10.171.2.1/24
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
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 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 1000 bits/sec, 3 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
212053 packets input, 12777974 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicast)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
125710 packets output, 8489768 bytes, 0 underruns
0 output errors, 0 interface resets
0 output buffer failures, 0 output buffers swapped out

Extended ping results!!!

Request 2545 timed out (size 2645)
Reply to request 2546 (1 ms) (size 2646)
Reply to request 2547 (1 ms) (size 2647)
Reply to request 2548 (1 ms) (size 2648)
Reply to request 2549 (9 ms) (size 2649)
Reply to request 2550 (1 ms) (size 2650)
Request 2551 timed out (size 2651)
Reply to request 2552 (1 ms) (size 2652)
Reply to request 2553 (1 ms) (size 2653)
Reply to request 2554 (1 ms) (size 2654)
Reply to request 2555 (8 ms) (size 2655)
Request 2556 timed out (size 2656)
Reply to request 2557 (1 ms) (size 2657)
Reply to request 2558 (1 ms) (size 2658)
Reply to request 2559 (1 ms) (size 2659)
Reply to request 2560 (1 ms) (size 2660)
Request 2561 timed out (size 2661)
Success rate is 83 percent (2135/2562), round-trip min/avg/max = 1/1/293 ms
 
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This is the ping results from the switch..

DR-3020-Bay2#ping
Protocol [ip]:
Target IP address: 10.171.2.51
Repeat count [5]: 50
Datagram size [100]: 100
Timeout in seconds [2]:
Extended commands [n]:
Sweep range of sizes [n]:
Type escape sequence to abort.
Sending 50, 100-byte ICMP Echos to 10.171.2.51, timeout is 2 seconds:
............................!!!!!!.!!!!!!!.!!!!!!.
Success rate is 38 percent (19/50), round-trip min/avg/max = 1/1/8 ms

DR-3020-Bay2#sh int vlan 54
Vlan54 is up, line protocol is up
Hardware is EtherSVI, address is 001c.0fcf.5141 (bia 001c.0fcf.5141)
Internet address is 10.171.2.1/24
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 0/255
Encapsulation ARPA, loopback not set
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 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
217329 packets input, 14044218 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
103041 packets output, 6598056 bytes, 0 underruns
0 output errors, 0 interface resets
0 output buffer failures, 0 output buffers swapped out

 
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What are the access ports? Do you have only one interface configured in a port-channel, and you're trunking vlans with a port-channel???

Burt
 
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This is the port on the switch that connects to the server
DR-3020-Bay2#
interface GigabitEthernet0/2
description DR-ESX2 vmnic3
switchport trunk encapsulation dot1q
switchport trunk native vlan 99
switchport mode trunk
speed 1000
spanning-tree portfast

The port channel on the switch
DR-3020-Bay2#
interface Port-channel1
description Channel to DR-MDF-Stack1
switchport trunk encapsulation dot1q
switchport trunk native vlan 99
switchport trunk allowed vlan 1,2,54,55,99,171
switchport mode trunk

the int on the switch that connects to the MDF
DR-3020-Bay2#
interface GigabitEthernet0/17
description Channel to DR-MDF-Stack1
switchport trunk encapsulation dot1q
switchport trunk native vlan 99
switchport trunk allowed vlan 1,2,54,55,99,171
switchport mode trunk
channel-group 1 mode desirable

------------------------------------------------------------

DR-MDF-Stack1#
interface Port-channel1
description Channel to DR-3050-Bay1
switchport trunk encapsulation dot1q
switchport trunk native vlan 99
switchport trunk allowed vlan 1,2,4,54,55,99,171
switchport mode trunk
!
interface Port-channel2
description Channel to DR-3050-Bay2
switchport trunk encapsulation dot1q
switchport trunk native vlan 99
switchport trunk allowed vlan 1,2,4,54,55,99,171
switchport mode trunk

The int on MDF that is configured for the switch
DR-MDF-Stack1#
interface GigabitEthernet1/0/3
description Cross to DR-3050-Bay2
switchport trunk encapsulation dot1q
switchport trunk native vlan 99
switchport trunk allowed vlan 1,2,4,54,55,99,171
switchport mode trunk
channel-group 1 mode desirable

Let me know what Im missing??
 
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You can't connect a trunk port to anything except another trunk port. It must be an access port.

Burt
 
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