Cisco Switching/Routing :: Pm Scp Process 100% And Switch 6500-E Crash?

Oct 24, 2012

The switch 6500-E is frequently crashing whenever the pm scp process reach 100% .I got it under the  command "remote command switch show proce cpu".How to solve the problem. I opened the TAC and the engineer says to upgrade the image12.2(18) sxf.Is there any other work around that would avoid to reimage the switch and reloading.

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Cisco Switching/Routing :: Catalyst 6500 - Crash Due To Pid 234 - Process ACE HAPI

Jun 29, 2012

I want to know what is this process used for on a catalyst 6500 ? we have got following message in the crash file, probably due to CSCsv77354
Jun 30 16:06:47.099 UAE: %SYS-6-STACKLOW: Stack for process ACE HAPI running low, 0/6000

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Cisco Switching/Routing :: 6500 - Reboot With Crash Info

Oct 25, 2012

Our 6500 was reboot by self with crash info and i found it was happened by CPU HOG. The log is below for CPU HOG and you can see many times from attached crash info file.
%SYS-SP-3-CPUHOG: Task is running for (16000)m secs, more than (2000)m secs (15/12),process = RPC pagp_switch_mp2sp.
I think this process made high CPU & memory issue and then there were internal communication fail.. isn't it? So i need to know what PRC pagp_switch_mp2sp is to prevent next issue.

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Cisco Switching/Routing :: Catalyst 6500 Boot Process?

Mar 19, 2013

document which explians normal booting sequence in a 6500 Switch running IOS. What I am looking for is in which order the image is loaded in SUP, RP, SP etc

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Cisco Switching/Routing :: 6500 ISSU Process Is In Progress

Apr 15, 2013

We are looking to upgrade the version of IOS on the 6500s this evening and in preparation i've dowloaded the image to sup-bootdisk.  However when trying to update the boot path as follows I see the following error: [code] Why are we seeing this message when the router is not doing anything with ISSU?

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Cisco Switching/Routing :: 6500 / Nexus OSPF Process Limit?

Jan 11, 2012

We are cutting over from 6500 IOS to Nexus 7000 and have hit "Maximum ospf feature instance limit reached." as we configured up the 7 existing ospf processes - the limit is 4. These existing processes are for various vrf contexts we have. I see you can run multiple vrf contexts under one process - but how does that work in a mixed environment where the ospf neighbours are still ios 6500s? They still expect to see different ospf process id per vrf.

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Cisco Switching/Routing :: 6500-E VSS High CPU Utilization Process IOS-Base

Apr 18, 2012

we are using Cisco 6509-E VSS mode [12.2(33)SXI] ipbase image and facing high cpu utilization. In show process cpu output it is showing some "ios-base" process consuming cpu.  I attached show cpu output

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Cisco Switching/Routing :: 6500 - SSH Control Process / Private Key Not Found

Nov 30, 2012

we have configured SSh on our primary and secondry core switch , SSH is working on primary Switch but we are unabme to access secondry Core switch through SSH .
Error are as under :
ov 28 09:14:15.380: SSH1: starting SSH control process
ov 28 09:14:15.380: SSH1: sent protocol version id SSH-2.0-Cisco-1.25
ov 28 09:14:15.396: SSH1: protocol version id is - SSH-2.0-PuTTY_Release_0.62
ov 28 09:14:15.396: SSH2 1: send: len 280 (includes padlen 4)
ov 28 09:14:15.400: SSH2 1: SSH2_MSG_KEXINIT sent


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Cisco Switching/Routing :: 6500 How Long Conversion Process Takes Place

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.

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Cisco Switching/Routing :: 3750x Master Switch Crash?

Jun 13, 2012

About an hour ago I had the master switch on one of my 3750x (WS-C3750X-48PF-S) stacks crash. The only two items we've found that could have caused this issue are the roughly 1.3 million big buffer misses and several of the following in the syslog
SLT:WARN:No exporter configured for smartlog! I do not have smartlogging turned on, nor is there a netflow exporter configured
sh logging smartlogsmartlog is disabledsmartlog exporter:smartlog pkt length: 64 Total pkts processed: 0Total DHCP Snooping pkts processed: 0Total DAI pkts processed: 0Total IPSG pkts processed: 0Total ACL pkts processed: 0
I did not see any traffic spikes prior to the crash.
This stack has been stable since it's last IOS upgrade from 12.2(58)SE1 to 12.2(58)SE2 back in October 2011 so this has me a little worried.

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Cisco Switching/Routing :: 3750E Debug Causes Switch To Crash And Reload

May 3, 2013

I am not able to find the exact bug for Cisco 3750E stack - Debug Exception (Could be NULL pointer dereference) Exception (0x2000) error. Closest i can find is CSCsa72400 which only affects ver 12.2(20)SE4.All the stacks (3 switches) are running 12.2(50)SE3, It appears that the switch 1 crashed and reloaded. My hunch is its software but i cant find any related bugs. It could be hardware issue as well ?

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Cisco Switching/Routing :: Switch 3750 High Cpu In Arp Process?

Jun 4, 2012

Our switch  is very high cpu in process arp
Am debug ip arp track command the result as below
-- on this switch have interface vlan 201 ip subnet is
Jun  5 15:30:40.732 GMT+7: IP ARP: rcvd req src 0001.6c6b.8ab9, dst Vlan201
Jun  5 15:30:42.150 GMT+7: IP ARP: rcvd rep src 0001.6c6b.8ab9, dst Vlan201
Jun  5 15:30:42.150 GMT+7: IPARP_TRACK: ARP tableid(0) Vlan201 mode(1) modified.
Jun  5 15:30:42.150 GMT+7: IP ARP: rcvd req src 0001.6c6b.8ab9, dst 172.27.116
and  then am try to shutdown vlan database 201 after that the cpu process has to normal state.
How to check the root cacus?

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Cisco Switching/Routing :: High CPU Due To SSH Process On 3750 Switch?

Nov 18, 2012

I'm facing high CPU  utilization issue due to a ssh process on 3750 switch. What is the use  of SSH proces in the switch? Can I disable it for troubleshooting?
will there be any impact if I disable it?
#sh processes cpu sorted 5min
CPU utilization for five seconds: 99%/0%; one minute: 66%; five minutes: 46%
PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
159     1896078    589986       3213  3.96% 10.76% 14.00%   0 Hulc LED Process
165       32871       591      55619 77.42% 33.40%  8.85%   3 SSH Process

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Cisco Switching/Routing :: 3550 Switch - Software Forced Crash Exception

Feb 7, 2013

Our switch had a little crash-fest this morning at 2:30 AM. I did find a web page about diagnosing Software Forced Crash Exceptions, but it did not look like ours was one of the more easily-identifiable ones.
It may be worth noting that we've only used this switch for about a month, everything seemed fine until now. When we got the switch it did not have any GigE modules, and this week we put 2 into it and have been using them for 2 servers.
It looks like the switch was crashing repeatedly over a period of 20 minutes, and then it stopped and normalized. In the logs of the router that this switch uplinks into, we could see the ethernet port flapping during the time that the switch wasn't reachable.
Here's the Show Stack on the switch:
Sfld_3550#    show stackMinimum process stacks:Free/Size   Name4404/6000   vegas_flash init3352/6000   SaveCrashBuffer5716/6000   CDP BLOB8512/9000   IP Background5596/6000   vqpc_shim_create_addr_tbl5584/6000   SPAN Subsystem5552/6000   SASL MAIN4944/6000   vegas IPC process8704/9000   cdp init process5404/6000   RADIUS INITCONFIG4928/6000   Vegas CrashBuffer5664/6000   URPF stats2536/3000   Rom Random Update


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Cisco Switching/Routing :: 4506E Any Free CPU Process Monitoring Tools To Identify Which Process Is Spiking

Oct 9, 2012

I have two core switches - 4506E, and i noticed there are frequent cpu spikes on both of the cores switches. As its spikes intermitendly i couldnt able to anlyze the issue. I need inputs on the following,
1) Is there any Free CPU process monitoring tools to identify which process is spiking ?

2) Troubleshooting techniques to identify the issue.

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Cisco Switching/Routing :: QOS On 6500 Switch?

Feb 17, 2013

I am trying to guarantee 100mbps for a vlan across a gig link.  I have done some research and found this command for switches
mls qos srr-queue input priority-queue 2 bandwidth 20
However it doesn't seem to work for my 6500.  I know the 6500 uses PFC for QOS but I have no idea how it works.  how I can guarantee a vlan 100mbps across a 1gig link?

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Cisco Switching/Routing :: IOS Copy For Switch 6500 With Sup-720

Feb 13, 2013

I have 2 Chassis 6506-E with sup 720. one of them work properly(Switch1) but another(Switc2) not boot form bootdisk and go to ROMMON mode. I Captured IOS from Switch1 with tftp but I cant Copy this image to switch 2 with tftp.

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Cisco Switching/Routing :: 6500 Series Switch - TCP Adjustment

Oct 14, 2012

I have a routed interface on a Cisco 6500 Series switch.  I am trying to find a way to adjust the tcp mss.To date I have not yet been able to find a way to accomplish this.  Is this just not supported?

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Cisco Switching/Routing :: Switch 6500 Policy Map Inbound

Jun 9, 2013

ON switch 6500 i have configured an interface vlan x and applied policies on inboud and outbound directions as per below: [code] But the problem i am facing is that the policy outbound works ok , but the policy inbound doesnt work at all. specifically it doesnt match anything. [code]

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Cisco Switching/Routing :: 6500 - Power Off Core Switch?

May 31, 2012

we need to relocate our core switch 6500 with sup 720 to another bldg
what is the command to gracefully shut it down I mean power off
I was told one can just switch off the power

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Cisco Switching/Routing :: 6500 Changing Switch Configuration

Aug 27, 2012

I am going to change a running 6500 switch. I am missing a best pratice doc for changing a cisco switch configuration. My question is if a startup-config has an error (due to typo mistake, or due to comands not supported on latest IOS) and I do copy tftp startup-config then what will happen ? I want to make sure when I do "reload" the switch then it should boot normally with the latest startup config !

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Cisco Switching/Routing :: 6500 Switch Interoperability With Other Vendor?

Apr 3, 2013

I tried many different things to get the accurate answer for my issue. I wanted to know, will i face any connectivity or looping issue in the network if i connect Broacade SAN switch on a cisco 6500 switch.Also need to know to maintain a DATA DOMAIN which SAN switch is better? Cisco or other vendor.

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Cisco Switching/Routing :: 6500 Switch Won't Accept Long IOS Name

Mar 29, 2012

I'm in the process of upgrading the IOS of our 6500 switch and unfortunately, the images were messed up by other users. Here's the output of show redundancy. [code] would i have any issues if I reload this slave supervisor engine to load the SXI8 IOS?

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Cisco Switching/Routing :: Catalyst 6500 Switch Architecture

Jul 16, 2012

one of the most widely deployed switches in the world. The "Swiss Army knife of network", can do routing, switching, security, wireless and almost everything that you would want your core switch to do. Remember to use the rating system to let Akshay know if you have received an adequate response. 
Akshay might not be able to answer each question due to the volume expected during this event. Remember that you can continue the conversation on the Network Infrastructure sub-community LAN, Switching and Routing discussion forum shortly after the event.  This event lasts through July 27, 2012. Visit this forum often to view responses to your questions and the questions of other community members.

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Cisco Switching/Routing :: 6500 - Changing VTP Mode Of A Core Switch

Oct 14, 2012

We have two 6500 core switches and one(primary) of them is running in VTP transparesnt mode and the other (secondary) one is running in VTP client mode. I would like to change the VTP mode of the second switch to transparent mode. Would it cause any issue. I guess i have to create VLANs onto the switch.

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Cisco Switching/Routing :: Migrating Core Switch From 3750 To 6500?

Jun 5, 2013

I am planning to migrate the core switch from cisco 3750 to Cisco catalysts 6513 switch. What could be the best approach to minimize the downtime or avoid disrupting the production. I have couple of thoughts, one method is to build the core and then replace the existing core, another option is to build the new switch as the second VTP server and once it recieves all the VTP information then disconnect the old server.

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Cisco Switching/Routing :: Spanning-tree Change On VSS 6500 Switch?

Jun 19, 2012

changing the Spanning-tree mode on a live 6500 running in a VSS mode?If so what are the things to watch out?

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Cisco Switching/Routing :: 6500 - Switch Booting - Hardware Failure On SUP

Jul 7, 2012

One of my customer had a problem with A/C and the room temperature reached almost 50 C. We came to the site and saved the configuration, took a backup and shutdown the switch.
After the A/C problem is resolved, we tried to power-on the switch .. and we found that it is going to the rommon.
I put "boot" command to boot from the bootdisk, but I am getting the following error:

I tried to search it, But it is resulting in that most probably it is a hardware failure on the SUP.

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Cisco Switching/Routing :: Clearing Single ARP Entry In 6500 Switch?

Feb 2, 2009

Is there any way to clear a single ARP cache entry on the 6500 switch ?

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Cisco Switching/Routing :: Connect 6500 With 4948 Switch Using 10G Optics

Jul 8, 2012

I need to connect a 6500 switch with a 4948 switch using 10G optics. On 6500, line card used is WS-X6704-10GE and I am aware that WS-X6704-10GE is a xenpak and 4948 ports are X2. What is the way to make the connection between xenpak and X2 work?

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Cisco Switching/Routing :: Combined Power Mode For 6500 Switch?

May 18, 2012

The following discussion is based on cisco cat 6500 switches with two power supplies: p1 and p2.  . Both power supplies are running in combined mode .Each power supplies is rated with 500 watts max( I just picked 500 watts for simplicity)Combined mode In combined mode, each power supply provides approximately 83% of its  capacity to the chassis. This allows for greater utilization of the  power supplies and potentially increased PoE densities
1) Let say  our specific 6500 switch's configuration requires 1000 watts. We have two power supplies p1 and p2 ,each with rated power of 500 watts.  Both power supplies must operate in combined mode.  Will power supplies be able to meet the total load power requirement of  1000 watts?
Here is my understanding :The maximum power delivered by each power supplies is 83 percent of its rated power, assuming power supplies are running in combined mode.
So Maximum power delivered by power supplies

=  83% of p1+ 83% of p2
=  83% of 500 + 83% of 500
= 415 +415
=830 watts

Thus the required load of 1000 watts can not be met by our power supplies in combined mode. 
2 )Suppose our switch's switch configuration needs 500 watts.  Again our power supplies each rated with 500 watts, are configured for combined mode. How much power is being delivered by each power supply?  Is it 83 percent of the total load i.e 500 watts?

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Cisco Switching/Routing :: 6500 - How To Set Switch On Auto Terminal Server

Apr 22, 2012

I have a switch(6500) with 2 vlans(2 SUBNETS) and from the other side of my network i have 2 terminal servers.

I want to have a VIP in my 6500 switch which i have the 2 vlans and when the first vlan(network) try to connect to the VIP

my switch will forward to first terminal.When the second vlan try to connect to VIP the switch will forward to second terminal.
I'd like the switch to decide in wich terminal server will forwared the packet based on source network.
I am not sure how i can do this???I use VIP with SLB???I use NAT???PBR?

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Cisco Switching/Routing :: Enable STP To Specific VLans In 6500 Switch?

Jun 13, 2013

I have 6500 with this STP configuration:
spanning-tree mode rapid-pvst
no spanning-tree vlan 1-4094
I need to enable STP on vlan 100 and vlan 103.
When I do "spanning-tree vlan 100,103 root primary" and then "show spanning-tree".I see that STP is not enable on these vlans (100,103).
I tried to do "no spanning-tree vlan 1-99,101,102,104-4094" and it is not work.
There is a way to enable STP on vlans 100,103 without to do "spanning-tree vlan 1-4094"

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