Cisco WAN :: 6500 Port Turns Amber After Unbind Channel
Sep 12, 2012
We have one cisco core switch 6500 series which was configured portchannel on several gig interfaces. This port is used as a trunk to enable communication between VLANs. The VLANs is where several high-end servers/hosts reside.After we disable / unbind the portchannel, the port turns amber. The following is what we did on the interface
1-no switchport command
2- make the port as access mode #switchport mode access
3- shut and no shut
4- clear arp
5- clear mac
what else can we do on that particular interface. It is just on that particular interface, the rest are ok.
I have a pair of 6500's setup with VSS and there is currently only one link between then. However one end of the link is on Po10 and the other end is on Po25. If I move the Po25 over to Po10, will things break? It seems to be working fine now. I'm about to add a second link and I'm concerned about the current configuration. It makes more sense to me to have both ends of the same link on the same port-channel ID. I've seen documentation which states otherwise however.
interface Port-channel10 no switchport no ip address
I have a Cisco 6500 series switch with VS-C6509E-S720-10G ,I have two redundant supervisors between two chassis on the LAN with no add-on line cards ?
I need to know if I can use the redundant supervisor 10 Gb uplinks to form a layer-2 Port channel between the two 6500 switches as i do not want to use want to keep the port idle additionally I need more bandwidth between the two switches for my server farm?
I have 2 cisco 6500 in a VSS configuration , All of my Lan access switches are Stack switches and every Stack is connected to the VSS in a Port-channel so basically this is a loop free environment with no blocked ports .As a best practice I left STP in the Background (mstp)which enhanced cisco features to STP should I configure on the Aggregator (6500-VSS) and on the Access switches ?
Because of my topology I dont see the need in configuring most features like Uplink Fast and Backbone Fast but I have configured Loop Guard in addition to UDLD on the 6500 Aggregation Switches (on the port-channels).On the access ports I have configured portfast , bpduguard and guard root (seems a little pointless to configure the two...)
1.should I Leave UDLD on and get rid of LoopGuard and configure Guard root instead ? since LoopGuard cannot be configured with Guard Root.
2.should I configure GuardRoot on access ports if I already have BpduGuard on them ?
3.Is there anything I need to configure on the physicall interface or is everything configured on the port-channel since STP reguards port- channel as a single interface ?
I need adding a vlan to the trunks bundled in port channel. I know how to add v lans to a port channel with Cisco IOS but with CAT OS.
I have 2 ports bundled to form ether channel in switch which is running CAT OS. There are already few v lans allowed in the trunk of each interface. now I need to add one more v lan.
For Example:- v lan 135 needs to be added in addition to the existing v lans.
clear trunk1/2 1-112,115,117-134,136-4094 set trunk 1/2 on dot1q 113-114,116,135
and similarly on the 2nd interface
so if I add vlan135 to the trunk one after another will it cause any service disruption?
and i see output "show interface Po4A" up up on switch-1, "show interface Po4B" up up on switch-2
5.- In the show running-config not appear configured Po4A and Po4B. it only show on outputs
6.- Po4A and Po4 was not configured on neither switches, my question is why appear Po4A and Po4B on switch-1 and switch-2 respectively? and why Po4 appear in down down.
7.- I solved this issue by shutdown and not shutdown to the interfaces on both routers, currently all is OK.
Configured Layer 3 portchannel from 6500VSS enabled switch to two different 6500 standalone switch. Configured first ip on VSS switch, second ip on standalone switch1 and third IP on standalone switch2. My question is
1. Will the portchannel be up? 2. If port channel is up, will I able to ping the connected IP's.
we have cisco 6500 series switch and configured port channel on both switches with 2 gig interfaces on both switches.
When we enable the port channel mode to as desirable to the interfaces on both side and applied the port channel to physical interfaces switch will go down and if we remove on any one side switch will come up. we have enabled globally the following commands. [code]
In our company 3nos Cisco 3750 (WS-C3750-48P) access switch in stake mode. All port are assigned with voice and data Vlan also Avaya IP connected with this switches. From last few days tow port 2/0/7 and 2/0/8 is showing amber and status is showing err-disable. At Avaya end it is showing a message “ETHERNET WAITING” in phone dispaly. I try to connect laptop directly with these ports but it is showing "Cross Connectivity". [code]
"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 know there are some line cards on the 6500 that do not play well with each other when trying to setup an etherchannel using two different line cards on the same chassis. I always thought it was line cards of different type, i.e. 6400 with a 6700 but these two line cards are exactly the same model with the same code level.
1) Are the error messages below from this incompatibility between line cards and etherchannel creation? 2) How to fix if the answer to #1 is yes? 3) What line cards work with which for etherchannel creation?
On the supervisor card of a cisco 6500 series, according to the following link, [URL] it only has 2 uplink ports on the card. Would I be correct in assuming that I only have those to ports that I can configure IP addresses on?
The cisco that is being devlivere is coming with a 48 port switch and 24 port fibre switch. Could I change any of those ports into a router port and configure IP addresses on those?
The supervisor card is a ws-sup-720-3b the 48 port switch is a ws-x6748-ge-tx the 24 port fibre switch is ws-x6724-sfp
So everything I've read on Cisco's documentation here: URL says that I can create a port-channel on two physical interfaces that will uplink to a VSS pair. However, the command is not recognized. What am I missing? I've tried executing "channel-group #" on the physical interface and tried creating the port-channel 1st and neither commands exist. I haven't seen it listed anywhere if it is only available after a specific piece of ASA software. If it is the software what version at a minimum I need to upgrade to? Below is an output from a show version
Cisco Adaptive Security Appliance Software Version 8.0(4) Device Manager Version 6.1(3)
Compiled on Thu 07-Aug-08 20:53 by builders System image file is "disk0:/asa804-k8.bin" Config file at boot was "startup-(code)
So I have a current port-channel between two 6ks that I need to upgrade. There's too much traffic and the port buffers on the SUP7203B sort of suck. Microbursts are causing overruns like mad. Im going to move the 2x1gig port-channel to a 6724 and make it a 3x1gig port-channel. The switches carry production traffic across the link to the tune of about 400 meg during the lowest load time. Initially, I thought that I couldn't move the port channel without temporarily taking down the link but I think I have a workable solution now. Has anyone done this successfully before? Im curious what others have done. Also, to make matters worse, the existing port-channel is 'mode on' and I want to migrate to 'mode active' in the new channel
I want to do the inter vlan routing packet tracer file url...configuration of MLS are as bellow can anyone tell me why vlan on switch0 can not ping vlan on switch1. [code]
I have just been setting up a WISM2 in a test lab and for some reason the Supervisor is not creating a port channel on my 6500 as suggested in the WISM2 Deployment Guide. WISM2 is installed in an appropriate slot (according to same doco) and have attempted reset to factory defaults, removing and power cycling several times.
Is it possible to configure a Cisco 2801 router with Multipoint Port Channeling? A service provider dropped a 4.5Mbps ( 3x T1s ) to one of our customers without any equipment. They assume the CPE responsible. If so, any links to documentation on this configuration. If not, what device will they need to buy from Cisco that can bundle these 3 T1s together then feed it into their router?
I have configured my Nexus 7018 and 5548 as follow (see diag attached).Both 7000 and 5500 are vPC pair(po1and po2). Now I have created port-chanel between 7018and 5548 as port channel PO3 on 5500. Would it give me 20g bandwidth as PO3?or 10g only uplink to 7018? Do I need to config all four 10g links in PO3 on both 5500 and 7000 switches to achieve max b/w and failover?
We have added GLC-SX-LH module to E1/1 and E1/10 and speed is set to 1000 (1Gig) Now other side of E1/9 and E1/10 are not connected. Port-channel status is down
Po105 1 eth trunk down No operational members 1000(D) lacp
show interface port-channel 105 shows different bandwidth (100) MTU 1500 bytes, BW 100000 Kbit, DLY 10 usec,question is under interface port-channel105 speed 1000 command inserted automatically.Now if we connect otherisde of interface, during port-channel comes up.what will be the port-channel interface bandwidth ? will it change to 2Gig(2000). Why speed 1000 command inserted automatically on port-channel.Since it is migration, we want to be more specific on the port-channel configuration?
What is the load balance method of 3750 port channel ( by source ip , or by source mac ) to diver traffic to paths? I have tried to use 10.242.104.101 and 10.242.104.102 as source ip, it will travel to the same link (G0/1) within one port channel (G0/1+G0/2). Howerver, if I later use 10.242.104.109, then this time it will traffic to G0/2 link. What's the concept behind.
Create a port channel out of interface 3 and 4 of ASAConfigure 2 sub-interfaces in those Po interface (my inside vlan and the dmz)At the 4948, configure a trunked port channel out of a single interface (funny ), then do the same in the second 4948Connect ASA port 3 to the 1st 4948's single-interfaced port channel, ASA port 4 connects the same on the 2nd 4948.
I need to increase the link capacity of 10GE to 20GE between two Cisco7609, so I feel the need to configure port channel between them, my little problem is that I have a SCE 8080 in the middle of both 7600 currently is configured inline. The SCE has 4 modules 1X10GE-L-V2 (currently in use 2), I was investigated and the truth is that I not found anything concrete about how to configure the SCE to "pass" etherchannel through it? What the SCE needs to support 20GE of traffic? (configuration and software)
Anyway, here's the situation I'm trying to configure several VLANs on my ASA to uniquely allocate to contexts, the VLANs will be trunked from my VSS. Unfortunately I'm not clear on how to achieve this, the configuration guide for 8.4 talks about multiple contexts and routed setups all which don't appear to apply exactly. I've configured the port channel at both ends and I've configured sub-interfaces on the port channel and assigned VLAN IDs. These sub-interfaces are then allocated to the contexts to set 'ip address' etc. I've not been able to successfully test this configuration and I am concerned that it is incorrect..
I have a customer that would like a 40Gb port-channel between two 3750-x switch stacks. When I try to activate four 10Gb ports in the channel, they go into error-disable. However, I am able to create a 20Gb port-channel without issue. I have had my configurations verified to Cisco best practice.
Is there a limitation on the amount of throughput that the 3750-x can handle? According to the data sheet the 3750X-48T can handle 101.2mpps, based on two 10Gb uplinks so if my math is correct then a stack of two 3750X-48T should be able to handle 202.4mpps.
I 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
