Hi James, thanks for the (quick) reply.
Honestly, no i haven't checked auto MDIX settings, but will do, thanks for the pointer. I tried it with an crossover cable, but no luck. Kind regards, Peter On Wed, Jun 13, 2012 at 12:49 PM, James Bensley <[email protected]> wrote: > Hi Peter, > > Have you checked auto MDIX settings and also a cross over? > > Just my two pence. > James. > > On 13 June 2012 11:41, Peter Subnovic <[email protected]> wrote: > > Dear List, > > > > i am having a somewhat (in my opinion) odd issue. > > > > We have an Cisco 4948 acting as our core switch running Cisco IOS > Software, > > Catalyst 4500 L3 Switch Software (cat4500-ENTSERVICESK9-M), Version > > 12.2(54)SG > > > > We recently purchased a WS-C2960S-48LPS-L running Cisco IOS Software, > > C2960S Software (C2960S-UNIVERSALK9-M), Version 12.2(58)SE2 > > > > I am having a hard time to bring the Link up at 1 Gbit Speed between > these > > two devices. The Link will only come up if configure the speed to 100Mbit > > and duplex to full on both sides. > > My first guess was a bad (copper) cable, so i tried it with 5 different > > cables but no luck. In the next step i tested it with different ports on > > both side, but still no luck. > > > > Interestingly, if i use the same cables and connect the 2960S to an > 3750G > > running 12.2(55) SE4 the link comes up just fine with 1Gbit (using the > same > > ports). Also, if i connect the 4948 to the 3750G the link comes up fine > at > > 1Gbit. > > > > My Laptop also negotiates just fine to 1Gbit on the 4948 and 2960S (with > > the same cables). > > > > I am kind of lost as i am running out of ideas what could cause this > > behavior. > > > > Has someone run into this problem? Do you have any ideas what could cause > > this issue, or what else i could be testing? > > > > I appreciate every input and thanks in advance. If you need any > additional > > info, please don't hesitate to ask. > > > > Below is the output of the interface configuration and what "show int" > says. > > > > Kind regards, > > Peter > > > > > > The Port configuration looks like the following: > > > > C2960S: > > > > interface GigabitEthernet1/0/47 > > description ===XXX=== > > switchport trunk allowed vlan 500-502,532 > > switchport mode trunk > > switchport nonegotiate > > load-interval 30 > > speed 100 > > duplex full > > > > 4948: > > interface GigabitEthernet1/47 > > description ===XXX=== > > switchport trunk encapsulation dot1q > > switchport trunk allowed vlan 500-502,532 > > switchport mode trunk > > switchport nonegotiate > > media-type rj45 > > speed 100 > > duplex full > > > > > > Show interface brings up the following: > > > > 4948: > > > > GigabitEthernet1/47 is up, line protocol is up (connected) > > Hardware is Gigabit Ethernet Port, address is 0018.18b7.ee2e (bia > > 0018.18b7.ee2e) > > Description: ===XXX=== > > MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, > > reliability 255/255, txload 4/255, rxload 4/255 > > Encapsulation ARPA, loopback not set > > Keepalive set (10 sec) > > Full-duplex, 100Mb/s, link type is auto, media type is 10/100/1000-TX > > Media-type configured as RJ45 connector > > input flow-control is off, output flow-control is off > > ARP type: ARPA, ARP Timeout 04:00:00 > > Last input 19:23:29, output never, 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 1891000 bits/sec, 311 packets/sec > > 5 minute output rate 1959000 bits/sec, 339 packets/sec > > 204875190 packets input, 65988069530 bytes, 0 no buffer > > Received 325083 broadcasts (147424 multicasts) > > 0 runts, 0 giants, 0 throttles > > 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored > > 0 input packets with dribble condition detected > > 292744855 packets output, 333704421693 bytes, 0 underruns > > 0 output errors, 0 collisions, 0 interface resets > > 0 babbles, 0 late collision, 0 deferred > > 0 lost carrier, 0 no carrier > > 0 output buffer failures, 0 output buffers swapped out > > > > Cisco 2960S: > > > > GigabitEthernet1/0/47 is up, line protocol is up (connected) > > Hardware is Gigabit Ethernet, address is a456.30e3.d0af (bia > > a456.30e3.d0af) > > Description: ===XXX=== > > MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec, > > reliability 255/255, txload 1/255, rxload 2/255 > > Encapsulation ARPA, loopback not set > > Keepalive set (10 sec) > > Full-duplex, 100Mb/s, media type is 10/100/1000BaseTX > > input flow-control is off, output flow-control is unsupported > > ARP type: ARPA, ARP Timeout 04:00:00 > > Last input 00:00:00, output 19:23:51, output hang never > > Last clearing of "show interface" counters never > > Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 3709 > > Queueing strategy: fifo > > Output queue: 0/40 (size/max) > > 30 second input rate 796000 bits/sec, 108 packets/sec > > 30 second output rate 187000 bits/sec, 132 packets/sec > > 23172539 packets input, 20875225690 bytes, 0 no buffer > > Received 156759 broadcasts (156578 multicasts) > > 0 runts, 0 giants, 0 throttles > > 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored > > 0 watchdog, 156578 multicast, 0 pause input > > 0 input packets with dribble condition detected > > 19788925 packets output, 7529119002 bytes, 0 underruns > > 0 output errors, 0 collisions, 1 interface resets > > 0 unknown protocol drops > > 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 > > _______________________________________________ > > cisco-nsp mailing list [email protected] > > https://puck.nether.net/mailman/listinfo/cisco-nsp > > archive at http://puck.nether.net/pipermail/cisco-nsp/ > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
