Cisco Switching/Routing :: 3750x Stack - LACP Waiting To Be Aggregated Takes Too Long
Oct 26, 2012
I have configured a portchannel with 3 ports - lacp active mode I want to pxe boot esx server with Hp Proliant DL 360 G7.
During Pxe Boot the physical Interfaces must be in (I) state - standalone.
The server receives via dhcp the ip but after getting the ip the link goes down for a short time and the switchport goes down and then in (w) state - waiting to be aggregated. Now the server tries to load via tftp the image but the server gets a timeout because the switchport is in state (w). It takes a long time til the switchport comes back in standalone mode (I).
Is it possible to modify the time how long the switchport is in the waiting to be aggregated state on 3750x ?
Would the right command be lacp rate-fast? But this command is not available on 3750x, only 6000 series.
View 0 Replies
ADVERTISEMENT
Dec 5, 2012
We will be converting two 6500s to VSS. Each chassis has a Sup2T module, fwsm, 6908-10G blade, wism1 blades and two or three 6748-SFP blades. I was wondering how long the conversion process takes? If I remember correctly at the 2012 networkers lab it took maybe 10 minutes while using Sup720s. The instructor mentioned that with Sup2Ts it would convert a lot faster.
View 3 Replies
View Related
Nov 24, 2011
I have a Cisco Aironet 1200 Series Access Point. It takes long time to boot up.
After showing the warning banner message it takes long time before asking for username.
The sh version is given below.
Cisco IOS Software, C1200 Software (C1200-K9W7-M), Version 12.3(7)JA4, RELEASE SOFTWARE (fc1)Technical Support: [URL] Copyright (c) 1986-2006 by Cisco Systems, Inc.Compiled Tue 05-Sep-06 14:15
[Code].....
View 3 Replies
View Related
Sep 4, 2012
I need to know if is possible to do a LACP using 2 x 10GB between 3750X and 2960S (WS-C2960S-48LPD-L) switches.
View 1 Replies
View Related
Oct 31, 2012
I have 3 switches in my 3750 X stack. I am getting the following error in the logs: %PLATFORM_STACKPOWER-4-PRIO_CONFLICT: Switch 1's power stack has conflicting power priorities. Not sure what I should do next. Below is my Stack-power configuration:
Power stack name: Powerstack-1 Stack mode: Power sharing Stack topology: Ring Switch 1: Power budget: 735 Low port priority value: 20 High port priority value: 10 Switch priority value: 2 Port 1 status: Connected Port 2 status: Connected Neighbor on port 1: c464.1308.7900 Neighbor on port 2: e8b7.4827.e680
Switch 3: Power budget: 729 Low port priority value: 22 High port priority value: 13 Switch priority value: 4 Port 1 status: Connected Port 2 status: Connected Neighbor on port 1: 2894.0fd9.9f00 Neighbor on port 2: 2894.0fd8.e200
Switch 2: Power budget: 690 Low port priority value: 21 High port priority value: 12 Switch priority value: 3 Port 1 status: Connected Port 2 status: Connected Neighbor on port 1: 2894.0fd8.e200 Neighbor on port 2: c464.1308.7900
Each switch has its own 715W power supply in it and all check out OK.
View 3 Replies
View Related
Jun 5, 2012
I have a Cisco 3750G-48PS Running IOS 12.2(40) and was wondering how many physical ports are supported in an LACP Configuration. Is it 4 or 8 ports in a single switch.
If I have a dual 3750 stacked together, and I want to configure (8) port LACP, Can I take (4) ports from each switch in the stack and LACP together.
View 4 Replies
View Related
Sep 27, 2012
I am having an issue on a Cisco 3750 stack where when the stack master is rebooted, all my lacp port-channels drop and then come back up again. After doing some investigation It seems that it is happening because of lacp using the stack master mac-address as part of the system-id, so when the stack master reboots, the stack mac changes. I see that there is the command: stack-mac persistent timer 0
There is this warning about using this command:
When you configure this feature, a warning message displays the consequences of your configuration. You should use this feature cautiously. Using the old master MAC address elsewhere in the domain could result in lost traffic.
My question are:
Are there any other consequences to using this command (apart from moving the switch/mac to another location in the network)It mentions 'If the entire switch stack reloads, it acquires the MAC address of the master as the stack MAC address' Is this still the case if you have the stack-mac persistent timer to 0? Does using channel-group mode on for the port-channels still use the same mechanism of having a system-id? (Will the channels flap using 'mode on' when rebooting the stack master.
View 4 Replies
View Related
May 8, 2012
We have two dedicated racks for our DMZ. We need to connect them to a firewall. We do all the cabling inside the rack, so each of them must have a top of rack.Problem is, switch in rack 2 will be connected to rack 1 and then to firewall, so if switch 1 fail, we lose both of them.
I would love to stack them like 3750 but I don't think there is stack-wise cable long enough to connect two racks (and I suppose this length isn't supported by technology).We have only one port left in the FW.
View 9 Replies
View Related
May 7, 2013
I'm trying to review a QoS setup, and I'd like to make sure I fully understand the current setup before I change anything. I'm seeing output drops on two different queue-thresholds, but not sure how packets are making it to one of the queues.
Switch Version
CORE#show ver
Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 15.0(2)SE, RELEASE SOFTWARE (fc1)
System image file is "flash:/c3750e-universalk9-mz.150-2.SE/c3750e-universalk9-mz.150-2.SE.bin"
cisco WS-C3750X-24 (PowerPC405) processor (revision A0) with 262144K bytes of memory.
Switch Ports Model SW Version(code)
I can find queue4-threshold3 in the mappings, but how are packets getting mapped to queue2-threshold1? The priority queue is disabled for this interface, so I'm not sure how this queue is dropping packets, according to the maps nothing is mapped to 02-01.
View 3 Replies
View Related
Mar 7, 2013
This 3750X stack (3 members) has some 100% cpu spikes. Is this bad enough to start tracking down the cause(s) or is this somewhat typical and not a reason for concern? I just took this reading. How can you detemine when the 100% and 80% spikes occurred?
2222233333333332222222222444442222222223333322222222222222
7777733333333338888888888000007777777770000077777888887777
100
[Code].....
View 3 Replies
View Related
Jan 31, 2012
I recently created a stack using (2) 3750x switches. I have three vlans on the stack (1,105,241) Vlan 105 is configured on 6509 core switches with multicasting and are connected to the stack via gigabit fiber. It is working well with clients on the Master or SW1, however clients on SW2 do not participate in multicasting Any client pc that is connected to SW2 vlan 105 does not show up in the "sh ip igmp snooping group" command. I can statically assign a client on SW2 to the mcast groups but but they fail to register on their own. I can take the cable connection from SW2 and plug it into an SW1 Vlan 105 port and it immediately becomes a member of the groups. I can then connect it back to the SW2 port and it disappears from the group membership. IGMP and PIM are configured with the defaults.
View 3 Replies
View Related
May 26, 2011
I have a 3750G and bought a new 3750X. It possible to stack these two together?
View 5 Replies
View Related
Dec 3, 2012
Seeing very high CPU on one of our 3750X stacks. Usally its around 30% but recently its 70, 80, 90 or maxed at 100% during the main day.IOS version c3750e-universalk9-mz.122-55.SE1.bin.Has a ten gig uplink connected to a nexus 7k and another ten gig connected to another 7k. Running Layer 3 and EIGRP on the 3750X.Is this normal for the CPU?
#sh processes cpu history
5555555554444455555555555555588888666669999888885555577777
8888000001111111111222227777755555666662222222229999977777
100
90 ***** ****
80 ***** ********* *****
[code]....
View 5 Replies
View Related
Dec 3, 2012
way to upgrade the IOS in my stack on 4 3750x switches
View 6 Replies
View Related
Dec 4, 2012
I have a stack of three 3750X-24P-S switches. Each switch has two PSU's.If I do a SH INVENT, switch 2 only lists Power Supply 0
If, however I do a SESS 2 onto the second switch in the stack and then do a SH INVENT, it shows both power supplies. Is it anything to be concerned about?
View 2 Replies
View Related
Mar 12, 2012
I have two WS-C3750X-48PF-S in stack, but every one has just one power supply. In the package of the switches is included one stack power supply cable.does it make sense to use stack power cable if every switch has just one power supply ??
View 6 Replies
View Related
Jun 17, 2012
Switch 2 has an interface configured in RSU Standby.Switch 3 has an interface configured in RSU active. The upgrading sequence is : Switch 2, Switch 1, Switch3.The aim of the test is to prove that there is no loss of IP connectivity throught the RSU process.During the RSU process, there are ping between all the computers.
IOS starting version : 15.0-1.SE3
IOS upgrading version (with OVERWRITE) : 15.0-1.SE3 (same version)
1rst step : Switch 2 reboot and come back master but isolated from original stack (switch 1 and 3)
2nd step : Switch 1 reboot, and come back with switch 2 into the upgrading stack.
Issue : at this step :
- Switch 1 put its interface (IP 192.168.5.254) up :
- Switch 3 has not reboot and still has its interface (IP 192.168.5.254) up
=> we have some OSPF adjencies and mac flapping issues : switch 1 and 3 are trying to mount there OSPF adjencies on the same IP. We loss our IP connectivity since step 3 is not over.
3rd step : Switch 3 reboot and come back up in the upgrading stack. The IP connectivity is back, and the RSU process is done.Is that a normal behaviour ?How can we avoid to loose IP connectivity during RSU process ?
View 2 Replies
View Related
Aug 2, 2012
I've a situation where I need to add a new 3750x to a existing stack of 3750. [code] When I tried to stack them together, I get a version mismatch error. Is this because of the difference in SW Image? What are my options next ? My ultimate goal is to make the new switch stack correctly with the exisitng switches.
View 11 Replies
View Related
Jul 17, 2012
I am getting a version mismatch when adding the following 3750X to the 3750 stack:
WS-C3750X-48 12.2(55)SE3 C3750E-UNIVERSALK9-M
2 0 WS-C3750-24TS 12.2(25)SEA C3750-I9K91-M
Can I upgrade the 3750's to be able to correct this? Which version does this require?
View 2 Replies
View Related
Jan 24, 2013
IOS upgrade tried on the stack of 2XWS-C3750X-24T-S , Upgrade was tried to support WCCP on the platform. Current version is Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 12.2(58)SE1, Not able find any IP Plus ios in the site ? Only available are IP base and Universal K9 , Tried upgrading to c3750e-universalk9-tar.122-58.SE2.tar by using stack upgrade method as per document [URL]
Upgrade fails with error :
%Error opening flash:update/info (No such file or directory)
ERROR: Image is not a valid IOS image archive.
Why current ios is not supporting WCCP , I hope it is there in the featureset. ( tried "sdm prefer routing" but no success) Does c3750e-universalk9-tar.122-58.SE2.tar will give me wccp support ? What is the issue with my upgrade and how do I do a successfull upgrade ?
View 3 Replies
View Related
Jun 19, 2012
We recently configured a stack of four 48 port 3750-x switches . We are noticing high CPU usage. "Hulc LED process" seems pretty high. This has coincided with VMware servers getting slow and non-responsive at times, perhaps a coincidence, not sure. Below I provided some outputs about how to diagnose it.
View 13 Replies
View Related
Nov 20, 2011
if I read the Datasheet of Catalyst 3750X-Series-Switches it is possible to connect a new X-Switch to an existing and old Catalyst 3750-Series Stack.What kind of requirements are needed? Only same IOS-Version in the hole Stack and if possible same Feature-Set? .... like in a normal NOT mixed Stack?
View 4 Replies
View Related
Apr 14, 2012
if we can stack the 3750G switch with a 3750X switch ?
View 7 Replies
View Related
Jun 13, 2012
Our customer has a stack of 6 3750G switches. They want to add another switch to the stack. I tried to quote another G, but I got a warning that the G series is EOS January 30,2013. Can I add a 3750X to the stack? I know that no matter what switch I get, I will have to upgrade the IOS in the stack, as the stack is running 12.2(25)SEE2.
View 2 Replies
View Related
Mar 8, 2012
I have a 3750X 24 port switch (with NM-1G network module) running IOS 15.0(1). Is there any benefit or reason to plug in the included Stack Wise cable and loop it back to itself in a single switch installation?
I don't see any recommendation in the documentation. The data sheet indicates a single switch is a non-blocking device so I'd think there's no bandwidth advantage like there is when connecting an actual multi-switch stack and needing to close the loop for the full 32 Gbps stack bandwidth.
View 2 Replies
View Related
Jul 15, 2012
I have a cisco WS-C3750G-24TS with IOS flash :/ c3750-mz.122-ipservicesk9-25.SEB4.bin "
I purchased a new Cisco WS-C3750X-24 with the IOS flash :/ c3750e-universalk9-mz.150-1.SE/c3750e-universalk9-mz.150-1.SE.bin. ( NEW )
When i configured a stack between the two 3750, the new switch restarted due the version mismatch (different IOS´s);
We have two versions:
WS-C3750G-24TS-ipservicesk9 flash :/ c3750-mz.122-25.SEB4.bin "
VS
WS-C3750X-24 flash :/ c3750e-universalk9-mz.150-1.SE/c3750e-universalk9-mz.150-1.SE.bin.
Is that possible to configure a stack between then?
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Tenho um cisco WS-C3750G-24TS com o IOS flash:/c3750-ipservicesk9-mz.1
22-25.SEB4.bin"
Adquiri um novo cisco WS-C3750X-24 com o IOS flash:/c3750e-universalk9-mz.150-1.SE/c3750e-universalk9-mz.150-1.SE.bin.
[code]...
View 4 Replies
View Related
Feb 7, 2012
I have two 3750X in a stack. Each 3750X has one 10Gb uplink to primary core1 and one 1Gb uplink to backup core2 configured in 2 etherchannel groups. The member switch has bad ports, so I need to replace it. I have spare 3750X unit. Is it possible to connect the spare unit to the stack and then move the RJ-45 cables from the member with bad ports to the new member? That way I can minimize servers downtime to just a few seconds..If that would work, then the last step would be to move the 10Gb networking module from old member to the new one, as well as the secondary PSU. Is it doable? Also according to the documentation, all I need to add new member is matching IOS version, correct?
View 1 Replies
View Related
Jan 10, 2013
I would just like to confirm whether dual stack hsrp is possible or not on 3750X both stack and non-stack.
The following is that I have to take care of this on the stack?
[Catalyst 3750 Software Configuration Guide, Release 12.2(55)SE]
[URL]
%FHRP group not consistent with already configured groups on the switch stack
View 4 Replies
View Related
Nov 20, 2011
I have two 3750G switches stacked together however it's not in a full ring configuration:
Stack Ring Speed : 16G
Stack Ring Configuration: Half
Stack Ring Protocol : StackWise
And as shown below it's obvious which cable is not working:
show switch neighbors
Switch # Port 1 Port 2
-------- ------ ------
1 2 None
2 None 1
It's not flapping - it's like the cable isn't there at all. I'm going to try reseating the cable in there and perhaps an all out replacement if necessary. My question - is there any threat of a reboot of the switch stack or of partitioning of the switch stack by trying to get the 2nd cable working?
View 1 Replies
View Related
Feb 25, 2013
i am seeing very high utilization on a random basis on the stack. and the logs indicate me that there is a pattern where there is a stack power cable shows inserted (which was never unplugged) followed by sudden spike in the utilization.
001018: *Mar 6 16:21:22.138: %PLATFORM_STACKPOWER-6-CABLE_EVENT: Switch 4 stack power cable 1 inserted
001019: *Mar 6 18:18:37.982: %SYS-1-CPURISINGTHRESHOLD: Threshold: Total CPU
[Code]......
View 16 Replies
View Related
Oct 23, 2012
I have a 3750X stack of 6 switches, I have a terminal server console server plugged into the console ports of all 6 switches. I am having a strange issue where I can connect to the master via the console, get a login prompt then I can log in, but when I try and connect to any of the members then I get a prompt "Press RETURN to get started" When I push return, it just loops back to the same prompt again:
switch-6 con0 is now available
Press RETURN to get started.
switch-6 con0 is now available
Press RETURN to get started.
I can connect to the stack via SSH fine etc. I am running 15.0(1)SE2. The stack is configured for TACACS+ auth via Cisco ACS.
Switch# Role Mac Address Priority Version State
----------------------------------------------------------
*1 Master f0f7.55ba.2700 15 1 Ready
2 Member f0f7.5541.da00 14 1 Ready
3 Member a493.4c1e.4b80 13 1 Ready
4 Member f0f7.5585.cb80 12 1 Ready
5 Member a44c.1120.8e80 11 1 Ready
6 Member a493.4cc0.fa80 10 1 Ready
View 4 Replies
View Related
Oct 28, 2012
We have 9 x 3750x switches with 5-nonPOE and 5-POE. There is a limitation with 4 POE per stack with Stack Power.
Can we combine all 9 to one stack since there are only 4 POE?
Or, is the 4-switch limitation applied regardless if they are mixed with POE and non-POE?
View 7 Replies
View Related
Mar 19, 2013
This feature doesn't work as advertised on the Release Notes and other documentation. After 12 hrs of lab work and a tlwo day support call to TAC, they finally came back to me that:
IOS Upgrade works well if you use the command force-reload, without force-reload, it won't work. --"of course with this command the complete stack will go down and the purpose of RSU will not serve"
Then they pointed me to a bug that I could not find in the bug tracker unless I searched by the bug ID number ?? CSCua78897
Unfortunately this bug has a closed status and is not slated to be fixed ?
View 2 Replies
View Related
