Cisco Switching/Routing :: Etherchannel Suspended Between Catalyst 4948 And VSS 6506E
Dec 23, 2012
I describe an issue when i need to performe an L2 or L3 Etherchannel from a Catalyst 4948 IOS Enterprise and 2 xCatalyst 6506E bandled with VSS.
From the VSS Side when i plug cables i see on the physicals and Etherchannel that Physical and protocole layer are up. On the 4948 side, I see that physical layer is up and protocol and Etherchannel interfaces are down.
On the Etherchannel port summary i see that the port state is supended.
On the first attempt, i have test with a L3 etherchannel on both side using no switchport with two IP addresses one at each side on etherchannel interfaces.
The etherchannel are bundled with LACP mode active and on the second attempt with PAGP mode ON.
The same configured on VSS 6506E work fine with Catalyst 3560E.
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May 24, 2012
I would just like to confirm if it is possible to create a 2x10G etherchannel on a 4948.
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Dec 12, 2012
Does the port adaptor PA-MC-2E1/120 work with the Catalyst Switch 6506E (Sup Engine: 720-3B)? We have bought a Enhanced FlexWAN card for this port adaptor.I read through the cisco website and seem to get confusing answers whether they are compatible.
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Jan 5, 2011
I have got a new 48port Cisco catalyst 4948 switch, which I configured as a VTP client and connected to Cisco 3750 which is a VTP Server (this switch is on production network). I connected port g1/0/48 from 3750 to port g1/48 on 4948 through a straight cable and made both ports as trunk port (I also tried through cross cable). The problem is these two switches are not detecting. For testing I connected a PC directly to one of the port on 4948 (making that a switch port) still the LED on switch didn’t glow up. Is there any special command needs to be run on 4948 switches to activate its physical ports?
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Dec 20, 2010
We are running a small network business and as funs of ciscos we own a some of the 4948s.We are facing an issue with couple of them as we get the below error message
C4K_CHASSIS-3-INSUFFICIENTPOWERSUPPLIESDETECTED:Insufficient power
supplies present for specified configuration
First thought to replace the power supply didn't actually work as we did that with no result.Power consumption is not an issue as well because all other 4948s work fine with 1 power supply (forgot to mention is 1 power supply in all of them).
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Jun 6, 2011
I want to choose a pair of switches for our data center.What I need: 48 x 1GE access ports, 2 x 10GE uplink ports.Nice feature of 3750-X is stacking. So what features has 4948-10GE? Why I should prefer that switch?
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Jan 4, 2012
I'm using a Catalyst 4948. It seems to drop all truncated packets. I don't know whether this is an expected behavior.I'm developing a program which processes packets in the following steps:
1) capture packets
2) if a packet is too long, truncate it to a certain length
3) insert a vlan tag (say 100) to each packet
4) send them to the switch
Mac address learning is disabled on the vlan 100, so the packets should be seen at all ports of the vlan. However, I only observed untruncated packets. Truncated packets seemed to be dropped by the switch.The summary of the source port is:
c4948-01#show interfaces gigabitEthernet 1/22 summary
......
Interface IHQ IQD OHQ OQD RXBS RXPS TXBS TXPS TRTL
-------------------------------------------------------------------------
* GigabitEthernet1/22 0 0 0 0 4018000 7390 2000 3 0
The receiving speed was approximately equal to what I sent.The summary of another vlan 100 port is:
c4948-01#show interfaces gigabitEthernet 1/18 summary
......
Interface IHQ IQD OHQ OQD RXBS RXPS TXBS TXPS TRTL
-------------------------------------------------------------------------
* GigabitEthernet1/18 0 0 0 0 0 0 3000 4 0
Almost no packets were output.I see a Cisco document says "ingress port drops corrupted packets" [URL] then my questions are:
1) Is this the root cause of dropping truncated packets?
2) What criteria does a switch use to check corrupted packets? My understanding is that truncated packets could have wrong L3 and L4 data, but they can't be detected at L2.
3) If switch drops mal-format packets, can we disable this feature?
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Apr 14, 2013
we have multiple Video production networks, with Video servers (AVID Unity ISIS) connected by 10GE fiber links to 4948-10GE switches. On almost every of these switches, I see more or less "Sequence-Err" interface errors. We do not currently have a known problem because this, and no other errors are seen. But I would like to understand the error, and therefore I would like to find out, what a sequence error means, what the cause is, and what the impact (to a frame) is?
By the way, it is well-known that the ISIS Video server does generate very excessive UDP data bursts. Maybe this matters? On Cisco doc I did not find an answer. The document "Troubleshooting Switch Port and Interface Problems" does unfortunately not refer to "sequence-err".
Here is an example output:
WS-C4948-10GE#sh int t1/49
TenGigabitEthernet1/49 is up, line protocol is up (connected)
[code].....
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Apr 11, 2012
to resolve a problem with L2 etherchannel -when I add VLAN on Portchannel, this VLAN does not appear in config Members of this Po, so after reboot Portchannel does not work: "...and will be suspended (vlan mask is different)"
I try to simulate it on test switch in office, but problem does not appear! Both switch are Catalyst3560G with same IOS.
1. SW in real network segment:
Model revision number : D0
Motherboard revision number : B0
[Code]...
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Jun 20, 2012
I'm configuring two etherchannel groups (2 ports in each) on a 3560 switch. I need to trunk multiple vlans over each channel group.
I created the vlan trunks and allowed vlans on each physical interface. I notice that I can also configure the vlan trunks on the port-channel interfaces that were created. Should I configure them under those interfaces, or leave them on the physical interfaces? Relevant config is below:
interface Port-channel1
!
interface Port-channel2
[Code].....
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Apr 22, 2012
I have 2 x WS-X4548-GB-RJ45 Catalyst 4500 Enhanced 48-Port 10/100/1000 Base-T (RJ-45) line cards in a 4500 chassis with 2 x WS-C4507R-E E-Series Super visor engines. We would like to create a layer 3 ether channel from a access layer switch terminating on our 4500 chassis. Can we configure the ether channel from the access layer switch such that one port on the ether channel is on one line card and the other one is on the other line card?
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Sep 26, 2012
I came across this Multichassis EtherChannel Features when read about information from Cisco Smart Business Architecture.After checking further, knowing that Cataly stwitch 6500 supports this feature.provide information that beside Catalyst 6500, is there any other model of Catalyst switch can support this feature?
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Apr 18, 2012
indicate why my ethernet ports are in suspended state for some reason, i need an indication why this may be and what i can do to fix this issue. configuration below. I have a 7010 which i'm using to connect to two 5510's. I have one vPC connecting the two 5510's to the 7010. I have a vPC domain configured between the 5510's. and no issues at all. My Nexus 7010 port channel members are suspended for some reason.
Nexus 7010
vpc domain 100
role priority 100
peer-keepalive destination 192.168.1.2 source 192.168.1.1 vrf vpc-keepalive
!
interface Ethernet 3/1
[code]....
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Feb 20, 2012
I'm installing a new 6506E switch and I want to use dual supervisor redundancy. I also have a spare sup 32 from another switch which i'm not using right now.I want to save some money. My question is Can I use one sup 720 as primary and the 2nd redundant sup 32 as a secondary on the same 6506E switch?
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Jun 2, 2013
I am looking the power requirement for 6506E in data sheet and it shows that is support 3000, 4000, 6000 & 8700W. I have currentely 4000W power source for my new 6506E switch. will it work with below modules in new 6506e ?
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Apr 18, 2013
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
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May 4, 2013
switch 6506 E with supp 720 does it support 10 GIG module ?
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Sep 29, 2012
I have problem with my Cisco 6506E switch.when it reloads its going to RMON mode, If I give Boot command I. The RMON, then only it will get load with the iOS image.
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Jun 4, 2013
I'm trying to boot this IOS on a 6506-E, s72033-adventerprisek9_wan-mz.122-33.SXI8.bin.
This is what I see in bootvar.
sh bootvar
BOOT variable = disk0:s72033-adventerprisek9_wan-mz.122-33.SXI8.bin,1;disk0:s72033-ipservicesk9-mz.122-18.SXF8.bin,1;
CONFIG_FILE variable =
BOOTLDR variable =
Configuration register is 0x2102
Standby not ready to show bootvar, I want to remove SXF8 and leave SXI8 alone. I removed both IOS file names in boot system and added the SXI8 again and saved. So this would be the output after.
But after a switch restart, this would be the output of show bootvar again.
sh bootvar
BOOT variable = disk0:s72033-adventerprisek9_wan-mz.122-33.SXI8.bin,1;disk0:s72033-ipservicesk9-mz.122-18.SXF8.bin,1;
CONFIG_FILE variable =
BOOTLDR variable =
Configuration register is 0x2102
Is there anything I need to check? This is an old engine and I'm not sure if the variables of the RP modified .
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May 21, 2012
I have a catalyst 6506E (WS-C6506-E) with a SUP2T supervisor (VS-S2T-10G) card and a 10G interface card (WS-X6816-10G-2T) + DFC4.I have configured an etherchannel to another switch with the 2 10Giga ports of the SUP2T card and 2 10giga ports of the interface card.I only use the 10Giga ports of the SUP2T card so the cards have the same QOS transmit capabilities.But they do not have the same receive capabilities.
So when I configure QOS (with the new commands on SUP2T) on my 4 ports within the Etherchannel, 2 ports move down because of the inconsistency.
Till this point, no surprise.
The problem is that the command "no platform qos channel consistency" replacing the "no mls qos channel-consistency" does not exist.I run the last IOS 12.2(50)SY1 IPSERVICESK9.
And I cannot have QOS on my Etherchannel on the 2 cards.Or I have to use 4 ports of my interface card but in case of failure of this card, I loose the whole etherchannel.I there a way to avoid the consistency check ?
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Feb 5, 2012
I see the command "vlan access-log ratelimit 2000" and wonder what it is that it does.
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Feb 9, 2012
We have 20+ VLANs on our main network, we have an offsite connected by metro GIG fiber ethernet. Right now, we have a layer 2 connection to there with the core at the main site as the gateway. We have had problems occationaly with the metro ethernet's spanning tree which then we would see our own network and cause an outage, not only for the offsite, but since the VLAN would see itself (not on our equipment but the metro ethernet carrier's) it would effect the main network as well.
What I was going to do to resolve this was change the connection to a routed network, however I need to still send some VLANs over the routed network (there are some applications that require to be on the same subnet as the server). Is there a way to Map the Vlan 10, and 11 at the main site to a vlan 10, and 11 at the remote site using a routed network? I noticed there is something about bridging, would I bridge the VLAN accross the routed MAN connection? Then would I bridge back the other way as well?
Main site has a 6506E
and offsite has a 3750E
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Oct 29, 2012
I have 2x6500s series catalyst core switch. i configurated vss. all them are working normal. but i have one problem. some of my servers link is down sometimes. I configurated server links as etherchannel.at etherchannel not both of links down only one link down.this modules i used to connect servers to core switch. modules 3 and 7 slot.
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Jul 14, 2012
I cannot boot IOS, when i reload this switch it go to ROMMON. I try to uploand IOS but it still has problem. i think i may wrong some point during i did uploand.
This is problem
Switch#sh bootvar
BOOT variable = cat4500-entservicesk9-mz.150-2.SG3.bin,1;bootflash:cat4500-entservicesk9-mz.150-2.SG3.bin,1;bootflash:cat4500-entservicesk9-
[Code].....
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Mar 13, 2013
My cisco 4948 switch is generating the below error,how do i troubleshoot this error.
*Mar 13 00:09:33.451: %C4K_L2MAN-6-INVALIDSOURCEADDRESSPACKET: (Suppressed 14 times)Packet received with invalid source MAC addre ss (00:00:00:00:00:00) on port Gi1/37 in vlan 1Gi1/37- to this port another 2950 switch is connected by trunk link.and to this switch end host is connected i.e.thin client
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May 23, 2012
MAC Support: 16000
Backplane: 18Gbps
Forward: 28Gbps
VLAN's: 4000 (q-in-q support)
Jumbo Frame Supported
Supported 8000 static routing
!Supporting Stack!
Cisco 4948 supporting stackable? which product do you recommend to these criteria?
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Sep 19, 2012
I am updating the iOS for a 4948 the bootflash is empty so all i can get into is the rommon. There is no option for x-modem. How can I put the iOS onto this device? [code]
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Jun 5, 2013
We had to transport one of our 4948 10 GE to another Data Centre and when we got it there and tried to power up its System Status LED was red and we cannot even get console to the device.
We can try to see if the switch is completely dead and needs replacing or is there something we can do to get it back up and running again?
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Apr 23, 2012
We purchased two new 4948 with two 10GE uplink ports and upgraded the devices to run IOS 15. My 6506 is running Sup 720 with s77233-adventerprisek0_wan-mz.122-33.SXI9. Currently we have 4948's connected to the same 6506's with no problems. Today I tried to add the new switches with new IOS and it caused of of my 6506 core switches to failover. I can't explain why because it was close to start of business and couldn't do much troubleshooting.
Currently we have four 4948 (running IOS 12.2(14) switches running Layer2 connecting dually to each of the two 6506 cores via 10GE fiber uplinks. I tried to add two more to the scenario, again running layer2 and dual-honing them to each of te 6506 switches. there are two 6506 core switches and they run HSRP and spanning tree is manually set to give priority to even vlans on one 6506 and odds on the other 6506. Also the new switches I tried to add did had rootguard applied as well as the uplinks.
We have to get this working and have no test environment to work with. We need to do this late this evening after close of business.
On another note, I have had problems upgrading some of my older 4948's to IOS 15. I followed Cisco's suggestion and upgraded the EPROM first and then the IOS upgrade took on three of the switches that were ordered rather recently. The four that were ordered in one batch will not take the upgrade even following Cisco's instruction and lots of other tricks. Nothing works. Having problems with IOS 15, in general?
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Jul 25, 2012
I am planning to upgrade Cisco 4948 IOS upgrade. We have few with older code( 12.2(25)EWA7), when issue sh version shows as Catalyst 4000 L3 Switch Software. while newer version of the switch show as Catalyst 4500 L3 switch.
1 Is this/(sh ver output) just because of the Older code ?
My 2 question is according to release note : [URL]
You need to upgrade your ROMMON before the IOS . 2 What is the approximate time it take to do this ROMMON upgrade ?
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Mar 8, 2013
I have 4948E module switch at customer site and below is the show version output. Image on the switch is not supporting 'AUTO QoS' as i need to enable Auto Qos on it to prioritize Voice traffic. Which image supports Auto QoS feature . Image should have L3 functionality also i mean it should support Routing protocols. I tried to enable auto QoS using by configuring "QoS' globally but no luck...with existing image.
{ URL}
ROM: 12.2(44r)SG9
Hobgoblin Revision 20, Fortooine Revision 1.22
Switch up time is 12 hours, 1 minute
System returned to ROM by reload
[ code]...
Configuration register is 0x2012
Switch#sh boot flash:
-#- --length-- -----date/time------ path
1 25793234 May 31 2011 15:20:20 cat4500e-entservicesk9-mz.122-54.SG.bin
2 25005209 Mar 08 2013 09:53:18 cat4500e-entservices-mz.122-54.SG1.bin
70033408 bytes available (58249216 bytes used)
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Aug 9, 2012
I'm connecting the two devices above and I need an LC to SC fiber cable. It should be pretty simple but I've seen two different types of LC/SC cables - one is 8.3/125 and one is 62.5/125. I believe the 62.5 is an older cable type but when looking at the detail sheets for each of the SFPs I see that both of these support a 62.5 or 50 micron core size.
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Mar 28, 2012
upgrade IOS in cisco 4948 switch, I do not have admin right and network access
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