RE: speed/duplex on 3560

From: M S (michaelgstout@hotmail.com)
Date: Sat Dec 30 2006 - 22:00:05 ART


Here are the configs:
Working

SW1
SW1#sho run | b 0/13
interface FastEthernet0/13
 switchport trunk encapsulation dot1q
 switchport mode trunk
!
interface FastEthernet0/14
 switchport trunk encapsulation dot1q
 switchport mode trunk
!
interface FastEthernet0/15
 switchport trunk encapsulation dot1q
 switchport mode trunk
!
SW1#sho int trunk

Port Mode Encapsulation Status Native vlan
Fa0/13 on 802.1q trunking 1
Fa0/14 on 802.1q trunking 1
Fa0/15 on 802.1q trunking 1

Port Vlans allowed on trunk
Fa0/13 1-4094
Fa0/14 1-4094
Fa0/15 1-4094

Port Vlans allowed and active in management domain
Fa0/13 1,3-4,7,26,45,52-53,67,999,1001
Fa0/14 1,3-4,7,26,45,52-53,67,999,1001
Fa0/15 1,3-4,7,26,45,52-53,67,999,1001

Port Vlans in spanning tree forwarding state and not pruned
Fa0/13 1,3-4,7,26,45,52-53,67,999,1001
Fa0/14 1,3-4,7,26,45,52-53,67,999,1001
Fa0/15 1,3-4,7,26,45,52-53,67,999,1001

SW1#sh ip int br | b 0/13
FastEthernet0/13 unassigned YES unset up
up
FastEthernet0/14 unassigned YES unset up
up
FastEthernet0/15 unassigned YES unset up
up

SW1#sho int fast 0/13 | in FastE
FastEthernet0/13 is up, line protocol is up (connected)
SW1#sho int fast 0/14 | in FastE
FastEthernet0/14 is up, line protocol is up (connected)
SW1#sho int fast 0/15 | in FastE
FastEthernet0/15 is up, line protocol is up (connected)
SW1#

SW2#sho run | b 0/13
interface FastEthernet0/13
 switchport trunk encapsulation dot1q
 switchport mode trunk
!
interface FastEthernet0/14
 switchport trunk encapsulation dot1q
 switchport mode trunk
!
interface FastEthernet0/15
 switchport trunk encapsulation dot1q
 switchport mode trunk
!

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Now Not working

SW1(config)#int range fas0/13 - 15
SW1(config-if-range)#speed 100
SW1(config-if-range)#dup full
SW1(config-if-range)#

The interfaces and trunks are still up and operational
|
Now changing SW2

SW2(config)#inter range fas 0/13 - 15
SW2(config-if-range)#speed 100
SW2(config-if-range)#dup full
SW2(config-if-range)#end

The links are now down
SW1#sho run | b 0/13
interface FastEthernet0/13
 switchport trunk encapsulation dot1q
 switchport mode trunk
 speed 100
 duplex full
!
interface FastEthernet0/14
 switchport trunk encapsulation dot1q
 switchport mode trunk
 speed 100
 duplex full
!
interface FastEthernet0/15
 switchport trunk encapsulation dot1q
 switchport mode trunk
 speed 100
 duplex full

SW1#sho inter trunk

SW1#

SW1#sho cdp nei
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone

Device ID Local Intrfce Holdtme Capability
Platform Port ID
R2 Fas 0/2 143 R S I
2811 Fas 0/0
R3 Fas 0/3 162 R S I
2811 Fas 0/0
R1 Fas 0/1 124 R S I
2811 Fas 0/0
R6 Fas 0/6 171 R S I
2811 Fas 0/0
R4 Fas 0/4 175 R S I
2811 Fas 0/0
R5 Fas 0/5 169 R S I
2811 Fas 0/0
SW1#

SW1#sho int fas 0/13 | in FastE
FastEthernet0/13 is down, line protocol is down (notconnect)
SW1#sho int fas 0/14 | in FastE
FastEthernet0/14 is down, line protocol is down (notconnect)
SW1#sho int fas 0/15 | in FastE
FastEthernet0/15 is down, line protocol is down (notconnect)
SW1#

SW2#sho run | b 0/13
interface FastEthernet0/13
 switchport trunk encapsulation dot1q
 switchport mode trunk
 speed 100
 duplex full
!
interface FastEthernet0/14
 switchport trunk encapsulation dot1q
 switchport mode trunk
 speed 100
 duplex full
!
interface FastEthernet0/15
 switchport trunk encapsulation dot1q
 switchport mode trunk
 speed 100
 duplex full
!

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

  From: "Tony Schaffran" <groupstudy@cconlinelabs.com>
  Reply-To: "Tony Schaffran" <groupstudy@cconlinelabs.com>
  To: "'M S'" <michaelgstout@hotmail.com>, <bob@bobsinclair.net>,
  <ccielab@groupstudy.com>
  Subject: RE: speed/duplex on 3560
  Date: Sat, 30 Dec 2006 16:28:23 -0800
  Did you set the speed and duplex on each device on both sides of the
  trunk
  link?

  Tony Schaffran
  Network Analyst
  CCIE #11071
  CCNP, CCNA, CCDA,
  NNCDS, NNCSS, CNE, MCSE

  www.cconlinelabs.com
  Your #1 choice for online Cisco rack rentals.

  -----Original Message-----
  From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
  Of M S
  Sent: Saturday, December 30, 2006 3:43 PM
  To: bob@bobsinclair.net; ccielab@groupstudy.com
  Subject: RE: speed/duplex on 3560

  This is what I did

  sw tr en do
  sw mo tr
  speed 100
  dup full

  Then I added mdix auto and no mdix auto to try to bring the links up
  (incase they weren't crossovers) The links showed up as not
  connected.

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

  From: "Bob Sinclair" <bob@bobsinclair.net>
  To: "'M S'" <michaelgstout@hotmail.com>,<ccielab@groupstudy.com>
  Subject: RE: speed/duplex on 3560
  Date: Sat, 30 Dec 2006 18:27:24 -0500
  Mike,

  I am able to hard code various speed and duplex settings on my 3560s
  and
  still trunk. Are you setting the same values on both sides of the
  link?
  Are you trunking to a router or another 3560?

  Bob Sinclair
  CCIE 10427 CCSI 30427
  www.netmasterclass.net

  -----Original Message-----
  From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
  Of M S
  Sent: Saturday, December 30, 2006 6:03 PM
  To: ccielab@groupstudy.com
  Subject: speed/duplex on 3560

  Hello:
  Does anybody know why you can't lock in the speed and duplex settings
  on
  the Cisco 3560?
  I just tryed to condigure some trunks and the links would not come up
  with the speed and duplex sett to 100 / full. I tried different
  combinations of no mdix auto and that didn't help. Thanks.Mike

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