Basic switch negotiating/fixed port question...

Hello,
Is there an issue with Cisco switches not negotiating port duplex and speed issues? We are finding ourselves running around having to fix these settings on most ports and on various switch models. Any thoughts or suggestions or comments, greatly welcome.
TIA,
Gary

Usually when one side is hardcoded with the speed/duplex, the hardcoded side will not be sending pulses to negotiate with the auto-side.
Therefore, the switch-end configured as "auto" sends pulses (i think it's called fast link pulse) to the other end & also waits to receive flp from the remote-end to determine the right port speed/duplex to use, but since the remote-side NIC has been hardcoded, it doesn't transmit it's side of the pulse.
Resulting in no-nego. Therefore, causing mismatch since it is unable to determine the duplex to use.

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Catalyst 6500 Block Switching Between Trunk Ports

Hello all,
I have a Catalyst 6509-E with SUP2T and a WS-68xx series SFP line card. On this line card I will have 5 trunk connections going to ME3400 4 port access switches. There is one tagged VLAN allowed on all trunk ports and it is the same across them all. I need to have one trunk connection be allowed to switch to all ports within this VLAN and the remaining 3 ports be denied to switch between eachother. The remaining three ports would only be able to switch to the primary trunk port.
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Does anyone have any ideas on how to accomplish this?

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Can't see switchport protected:
6509(config-if)#switchport protected
^
% Invalid input detected at '^' marker.

Catalyst 6500 Block Switching Between Trunk Port

Hello all,
I have a Catalyst 6509-E with SUP2T and a WS-68xx series SFP line card. On this line card I will have 5 trunk connections going to ME3400 4 port access switches. There is one tagged VLAN allowed on all trunk ports and it is the same across them all. I need to have one trunk connection be allowed to switch to all ports within this VLAN and the remaining 3 ports be denied to switch between eachother. The remaining three ports would only be able to switch to the primary trunk port.
For informational purposes I want to point out that the downstream ME3400 access switches are performing QinQ on each connection so that when the traffic reaches the 6509 it will be double tagged.
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Duplicate posts.
Go here: https://supportforums.cisco.com/thread/2261414

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Hi Boris, it looks like the macros are jacked up. A lot of the ports say dynamic-type unknown and a ge-1 link says switch no switch over and over. I'm not sure what happened to that switch during installation / configuration but it seems like a lot of trial/error there which may cause the macros to get messed up.
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Hi
I have just purchased some WS-C3850-12S switches ..... i am trying to create a number of straightforward 1 gig uplinks from 2960 switches using fibre and sfps.
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interface GigabitEthernet1/0/1
interface GigabitEthernet1/0/2
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ta

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Hi William,
I would like to check if you need further assistance .
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Hub versus Switch to Add Ports to AE

Having an issue getting some devices to connect to my new (this year) Airport Extreme. I have a 10/100 hub which is several years old which I thought might be the problem but now I'm having doubts based on discussions I've reviewed.
I thought maybe I needed a switch. The biggest issue is with the internet connection from my DirectTV receiver which is only happy being connected directly to the AE. I am adding more devices to my network and will need to utilize a couple of hubs. Specific questions:
Should I use a hub or a switch?
Should I avoid daisy-chaining any hubs and/or switches?
Any other considerations to extend my network?
TIA,
JD

Should I use a hub or a switch?
A switch provides full bandwidth to each connected device. A hub splits things up. A switch costs more for that reason, but it would be wise to spend a few more dollars. By the way, your AirPort Extreme has 10/100/1000 Ethernet ports, so you should use a Gigabit switch if you want to take advantage of the faster 1000 Mpbs speeds.
Should I avoid daisy-chaining any hubs and/or switches?
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Take this configuration on a 6500 with 2 WS-X6716-10-GE modules installed.
interface Port-channel1
description Switch02:Po1
switchport
switchport trunk encapsulation dot1q
switchport mode trunk
switchport nonegotiate
interface TenGigabitEthernet1/1
description Switch02:Te1/1
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switchport mode trunk
switchport nonegotiate
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interface TenGigabitEthernet2/1
description Switch02:Te2/1
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switchport nonegotiate
channel-group 1 mode on
shutdown
Now I do this:
conf t
int Te2/1
no shut
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%EC-SP-5-CANNOT_BUNDLE2: Te2/1 is not compatible with Te1/1 and will
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glen.grant wrote: Shutdown the port channel by shutting down the port channel SVI . Then try to bring it up , with a no shut on the port channel SVI , this will bring both ports up at the same time. Sometimes they do not like having a single port in the channel being brought up by itself. Also make sure the other end matches exactly seeing you are forcing the port channel to an on state.
I agree this may work, but it doesn't really address the problem. If both the logical and physical interfaces have 'switchport nonegotiate' configured, why would the switch see it in Dynamic Trunking mode?
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%EC-SP-5-CANNOT_BUNDLE2: Te2/1 is not compatible with Te1/1 and will be suspended (dtp nonegotiate of Te2/1 is 0, Te1/1 id 1)
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I see you have 2960s, but there is know bug for the 2960-X series regarding GLC-T and other SFPs.
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CSCur56395
https://tools.cisco.com/bugsearch/bug/CSCur56395/?reffering_site=dumpcr
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Basic switch negotiating/fixed port question...

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