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Odd Network Preformance

I have an interesting issue.  In my network, I have a Cisco 6509 with a WS-SUP720-3B card as my network backbone.  Connected to this, through a VLAN is an uplink to a Cisco 2800 series router that runs a 4xT1 MPLS circuit.  The MPLS circuit is owned and managed by AT&T, is I currently do not have access (none at all).

My Issue:
When I ping the LAN interface from my laptop (plugged directly into the 6500), my pings are always in the triple digits (150-500ms).  When I ping the interface from the 6500 CLI, I get 1ms.

My Setup:
The 6500 has an IP of 192.168.0.13 /24
The router has an IP of 192.168.250.1 /24
I have created a VLAN with IP 192.168.250.10 /24
The uplink on the 6500 is assigned to this VLAN

Things I've checked:
Extraneous routes (none)
The 6500's uplink port counters:
GigabitEthernet1/45 is up, line protocol is up (connected)
  Hardware is C6k 1000Mb 802.3, address is c89c.1d63.60d4 (bia c89c.1d63.60d4)
  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 10/100/1000BaseT
  input flow-control is off, output flow-control is off
  Clock mode is auto
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output 00:00:07, output hang never
  Last clearing of "show interface" counters never
  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 3889000 bits/sec, 435 packets/sec
     59282 packets input, 3832276 bytes, 0 no buffer
     Received 1176 broadcasts (962 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 5 frame, 0 overrun, 0 ignored
     0 watchdog, 0 multicast, 0 pause input
     0 input packets with dribble condition detected
     44105770 packets output, 20803951804 bytes, 0 underruns
     0 output errors, 0 collisions, 3 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

VLAN
interface Vlan250
 ip address 192.168.250.10 255.255.255.0


Routes:
ip classless
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 192.168.0.6
ip route 10.10.0.0 255.255.0.0 10.10.60.5
ip route 10.10.6.0 255.255.255.0 10.10.60.6
ip route 10.10.20.0 255.255.255.0 192.168.0.6
ip route 10.10.40.0 255.255.255.0 10.10.60.5
ip route 10.10.50.0 255.255.255.0 192.168.200.1
ip route 10.10.53.0 255.255.255.0 192.168.0.5
ip route 10.10.100.0 255.255.255.0 192.168.250.1
ip route 192.168.1.0 255.255.255.0 192.168.250.1
ip route 192.168.6.0 255.255.255.0 192.168.0.5
ip route 192.168.100.0 255.255.255.0 192.168.250.1
ip route 192.168.100.0 255.255.255.0 192.168.0.7 2
ip route 192.168.200.0 255.255.255.0 192.168.250.1

Suggestions?


 
I don't see anything that screams issue to me (minus the 5 frame errors, and 3 interface resets, but those have been static for some time


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Commented:
Ohh one other thing, I've also added a second IP address to the VLAN interface (192.168.0.1 /24) - My previous L3 switch had this IP address, and we just fully removed it yesterday.  I added that address this morning for any device that may have a static IP address (printers, servers, and a few users)

Commented:
Hi,

Could you give the configuration of the 6500 from the uplink port to the router and the access port for your laptop ?

Commented:
Sounds like a duplex and/or auto-negotiation compatibility issue. Have you tried manually forcing 1000 full/half, 100 full/half, etc, on both ends of the problem link - one end at a time, then both at the same time? I have also seen several cases where Cisco Ethernet ports are just plain incompatible with certain NICs, at a hardware level. This is all assuming you have checked the integrity of the Ethernet cable.