We need to change the Channel-group settings in 3750 switch from Mode ON to Mode Active. We have tried once by removing the physical interfaces from the port-channel group but we lost the connectivity to the secondary switch. Any step by step procedure without losing the connectivity between switches.
View 2 RepliesI have 3750 core/distribution switches with routing enabled in two offices connected with copper link and L3 port channel interfaces. NewOffice#2 has moved about 5 miles farther away from office#1 and I have to deploy new core/distribution switch connect it to old core#2 via F.O and move all access switches with it. Old core will stay in old #2 offices as a bridge between office#1 and new office#2 Office#1core<->copper (Ethernet) <->oldoffice#2core<->f.o. <->new office#2core How I should configure port channels ports on oldoffice#2 core to act as bridge between office#1 core/dist and newoffice#2 core/dist without changing anything else (ip, etc) on whole network
View 1 Replies View RelatedI set up a port-channel trunk between a acess switch 3750 ( int gi2/0/1 and gi2/0/2) and Core 6509( int gi7/11 and gi7/12).
On the both the 3750& 6509 I configured:
interface Port-channel15
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 100,103
switchport mode trunk
But the ports on the core g7/11 and g7/12 keep shutdown and when I do show interfaces port-channel 15, it show the interface is shutdown.
I am building a new network and intended on using the min-link feature on my port-channels between a 3750-X series switch and Nexus 4k.
However reading further into this it seems this feature is only supported on higher end models. I cannot find any reference to the min-links feature in the 3750-X configuration guide. Is this an available feature?
The 3750-X model is WS-C3750X-24T-L running IOS 12.2(55)SE3 IP Services
My thoughts is that the is only an LACP supported feature so I may not see the command until I have entered an LACP specific command on the port-channel but unfortunately I do not have a 3750X to verify this on at present.
We have a switch that, when configuring auto qos on and edge port facing video equipment, the upstream port channel drops. I was wondering if no auto qos would have to be configured on the member ports of the port channel prior to enabling auto qos on any other ports.
View 2 Replies View RelatedI would like to know how many port channel can i configured in the switch 3750 X ? and if there is a limitation by IOS ?
View 4 Replies View Relatedi want to realize a 20gb ring stp with 6 3750x stacked by 2. I want to install 2 3750x stacked configured in hsrp mode with other 2 3750 stacked. These 2 different stack are interconnected by a cross-stack ether channel 20Gb fiber. On the other side of the room i want to create a new stack with 2 3750x with cross-stack ether channel 20gb connected with the previous 2 stacks. So, in total 3 different cross-stack ether channel 20Gb stacks interconnected creating a ring stp of 20 Gb.
View 4 Replies View Relatedhow to configure this. I did it in the past but kind of forgot how I did it.I have a stacked 3750 (two physical switches) connecting to a 2960.
I am creating trunk ports with limited access to VLAN 300, 600, and 700.
There is two interfaces connected from the 3750's(one on each physical stack member) to the 2960.I have the physical interfaces configured exactly the same.
3750 Config:
interface Port-channel2
!
interface FastEthernet1/0/46
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1, 300,600,700
switchport mode trunk
speed 100
[code]....
Should I keep the configuration on the physical ports and not configure the Port-Channel Interfaces? Do I need to configure port-channel load balancing? Is the channel-group mode sufficient? Goal is to basically create 2 links to the 2960 to double the bandwidth and provide redundancy.
I understand on older IOS codes If the same hsrp group number is assigned to multiple standby groups, it creates a non-unique MAC address. Is this true on newer codes like 12.2(52)SE for 3750 & 3560?
View 4 Replies View RelatedI have a 3750 as core switch, adding 2 stacks of 2960S to connect. I want to establish etherchannel between the 3750 and each additonal 2960S stack, do the channel group numbers between the 3750 and the new 2960s have to match? 3750 has two channel-groups(1 and 2) already configured. Need to know, I would create 2 additional channel groups (number 3,4) for each of the etherchannels between the 3 2960S Stacks and 3750? OR channel-group # is local to the device.
View 5 Replies View Relatedattached diagram and following is the basic configuration on L3 and L2 switch. Is this configuration sufficient for simple routing?
L3SWITCH:
switch 1 priority 15
switch 2 priority 10
[Code].....
In my lab, there are some machines that are connected using Cisco 2950 switches. Those machines belong to a VLAN.Now I need to modify the VLAN settings of the machines and as such I also need to modify the VLAN settings on the ports on the Cisco switches.
In order to do this, first I need to login to those switches, but due to a lack of knowledge transfer, I don't have the password. Is the some generic password?Second I will need to modify the VLAN settings on each individual port. How can I do this?
we purchase only Cisco Supervisor Engine VS-S720-10G and use it in our old C6509-E chassis.Now the supervisor engine was dead,(means not working and no LED's are ON). How can i claim the RMA from cisco?
We purchase from one of our partner. We send it to them,they are not able to find the Serial number from the Supervisor Engine module (Because lot of serial numbers are on the board). Also the customer through the catoon.
Now how we can know which is exact serial number of sup? How to get RMA from the Cisco on which serial number?
I am upgrading a Cisco 6506E VSS from 12.2(33)SXI5 to 12.2(33)SXJ5 during a maintenance window. So I have plenty of time to reboot the VSS. Confirm below is the correct procedure. I have manually copied the new IOS to both active and standby Sup720s.
no boot system
boot system flash sup-bootdisk:NEW_IOS.bin
boot system flash sup-bootdisk:OLD_IOS.bin
!
copy run start
reload
I was going through the below cisco document and there are a few more steps as below: Is it necessary?
[URL]
Router(config)# no boot system
i just wanna know if it's possible to perform a router password recovery using the reload command and then issue the break sequence instead of doing an off/on on the power switch. i often find in the docs to use the latter.also, is there a way to retain the startup-config on a router when we re-enable the password recovery functionality (no service password-recovery). i've just tried this on one of our 877 and when i hit the break sequence, it went back to factory default setting.
View 7 Replies View RelatedIs there any shut down proceedure for cisco devices in data center cisco router,switches,firewalls ASA-5580-20,ace-4710 and IPS-4260 devices.
View 4 Replies View RelatedI am looking few information on IOS up-gradation for the switch WS-C3750G-48TS-S . I loaded new Image on the flash and current flash and sh boot as below
Switch#sh flash
Directory of flash:/
2 -rwx 8859636 Mar 1 1993 00:08:14 +00:00 c3750-ipservicesk9-mz.122-37.SE.bin
3 -rwx 556 Mar 1 1993 00:02:38 +00:00 vlan.dat
4 drwx 64 Jan 9 2012 03:17:56 +00:00 crashinfo_ext
5 -rwx 5768 Apr 24 2013 04:25:28 +00:00 private-config.text
[code]...
1) I would like to set boot sytem parameter for the new IOS and secondary old IOS as well is below command works??? if IOS not coming up with new one 12.2.58 is it boots with old 12.2-35 ?
boot system flash:c3750-ipservicesk9-mz.122-58.SE2.bin;flash:c3750-ipbase-mz.122-35.SE5
2) If I set only boot system flash:c3750-ipservicesk9-mz.122-58 , if new image corrput swicth will check valid image and boot up with old image ?
3) If switch went to room1 switch mode and still I have valild running IOS c3750-ipservicesk9-mz.122-37.SE.bin at flash memory, how to restore with old image
Am setting up Cisco 3750 for the first time via CLI
1. what is the procedure for configuring passwords on the device.
2. how can i stack 3 switches in a site .
I can't find the theoretical limit of T1s in a channel group on a 2800. I know that you can have 2 channel groups per V Wic 2, but it doesn't say how many T1s I can have bonded. I think it's 8, but I can't find it in writing anywhere.
View 3 Replies View RelatedI need to upgrade the IOS and therefore change the flashcard on a router 2811.
What is the procedure to change the flash (64MB to 256MB) on a 2811 router?
I can remove the flashcard when the router has already started, change the flashcard and load the new IOS?
How maximum channel-group supported by VWIC2 1MFT G.703? And the CISCO1941/K9 ?
View 0 Replies View RelatedIs it possible to disable DCA for a couple of APs and manually force the channels assignment ?
View 3 Replies View RelatedIs there a "best" channel to use for the router -- e.g. the one that would provide maximum range? I live in a fairly large home and the connection deteriorates in some rooms (not lost altogether, but weaker). Also, what is "channel width"? It's set to 20MHZ, but there is also a setting for Automatic 20/40MHZ. What's the adv advantage of one setting over the other?
View 9 Replies View RelatedI have two servers behind the RV180 and a list of ports I would like to open to the public (80, 443, 21, 3389).In that case, I have to setup 8 Access Rules. I am OK in the first time setting up.But later on, if I would like to change the external IP <-> internal IP mapping, I have to change the Access Rules one by one for all related ports.
Does it has a setting for grouping the ports together so that I can set the Access Rules by one time only ?BTW, the summary view of the Access Rules in RV180 is not very clear, I can't differentiate the Rules for different Destination NATs ... I have to click into the details one by one ...
Do I need the Universal image to perform stftp on a 3750 or 3750-X?
View 8 Replies View RelatedHave 2 N2K with dual-connections to both 2 N5K, will all 4-ports of N5K will be the same port-channel. N2K as well ?
View 1 Replies View RelatedI need to configure a port channel between two sw 4507R. with port Giga, but those port are in different modules.
Sw-1
interface GigabitEthernet5/48
description **** Conexion Switch-2*****
[Code].....
i am not able to apply an access-list to FastEthernet 0 as the ip access-group is not supported in Interface mode but only in interface vlan mode.How can I stop traffic into the LAN network?
View 6 Replies View RelatedWhen you aggregate multiple fiber GBICs together on the 3508G, do you configure it as an etherchannel, or as fibre-channel? I've looked around online for hours, but can't find it mentioned anywhere.
View 3 Replies View RelatedI was configured ether channel between two cisco 2960s series switches. It is working properly. I was replaced two cables in etherchannel. Now one link working remaining link is down(both cables are working cables only). Below are ether channel details.
View 9 Replies View Related"How to display the EOBC error counters in the Catalyst 6500 series switches and a definition of the EOBC interface" document here on support forum stays that The Ethernet Out of Band Channel (EOBC) is a half duplex channel that services many functions, which include the Simple Network Management Protocol (SNMP) and the packets that are destined for the switch.
Previously i were thinking that EoBC used only for SCP and SLP protocol. In addition i found other article (but not on cisco site, heh) where stays that The Results bus is a control plane, while the C (EoBC) bus is more of an "admin plane", thus you will never see data packets (such as CDP, SNMP, etc.) going over the R or C bus.
So there is a big contradiction between those two statements. How to prove one of those and if first one right, what meaned under the packets that are destined for the switch in it? SCP and SLP or other traffic as well?
I have 2 Cisco 6509 switches linked together via single Fibre as a trunk.I want to change this to a port channel where I will add another 3 fibre ports to the port channel but what order do I do this to minimise any disruption.
1-Configure PortChannel and add the 3 new ports, this will bring up the Port Channel but what effect will this have on traffic currently going over the single Trunk link? Will spanning tree go mad, how will switches react?
2-Convert existing Trunk link to Portchannel then add in new ports to PortChannel, I guess in doing this there will be a small hit on traffic as it changes to a port channel.
We have 2 6513's that are linked via 2 10 gig interfaces, using an LACP channel.I received an alert this aft stating that the far 6513 was unreachable and the port channel int PO3 had gone down, the 2 10 gig interfaces had also gone down on either side. 5 mins later PO3 had resestablished itself and has been fine since. [code]
View 4 Replies View Related