Cisco Switching/Routing :: Polycom IP 430 Phones Constantly Rebooting?

May 29, 2013

I just installed a refurb'd 3560 48 port POE switch and configured all ports on VLAN100.  All Polycom IP 430 phones (with power adapter and without power adapter) constantly reboot every couple minutes.  Any Cisco 7960 phone does not constantly reboot and works correctly.  When I plug a small unmanaged switch into a 3560 port and then plug the Polycom phone into the unmanaged switch powering the phone with a power adapter, the phone works correctly.  So it seems that the 3560 is causing the Polycom to reboot. 

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Cisco Switching/Routing :: 3750X / QoS Configuration For Polycom Phones?

May 15, 2012

I would like to know if there an specific configuration in order to apply QoS configuration in Switches 3750X for Polycoms Phones.I was reviewing the information from Cisco but mostly of them apply only for cisco phones, and just some or basic for non cisco phones.

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Cisco Switching/Routing :: LLDP-MED TLV Commands - Cat45010+E Sup7 And Polycom CX600 Lync Phones

Oct 15, 2012

I'm trying to configure LLDP-MED between a Cat45010+E Sup7 (IOS 15.1) and Polycom CX600 Lync phones. I have created and applied the correct network policy for the interfaces.
 
From these sites, I need to send all the correct TLVs or the phones won't respond: {URL}.
 
When a scour the config of the switch, I can't find any related configuration commands relating to the specific LLDP-MED TLV components which are enabled/disabled. Where are they hiding? I would like to confirm which TLVs are being sent by my switch and if they are matched to the phone. I can always use the DHCP method, put this is not preferred.

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Cisco Switching/Routing :: IP Phones Do Not Start After Rebooting (Switch 4510)

Oct 23, 2012

I'm having some trouble with a 4510 Switch Line Card. I need some recomendations for troubleshooting it.We have some PoE phones connected to the card number 3. When those phones were restarted, they did not go up again. In order to discard wiring issues, we connected the phone directly to the card 3, and the phone did not go up. If the phone is connected to a different card, it goes up correctly.

Additionally, to restore the service, these phones were migrated to other cards, but when we disconnect the equipment, ports in line card 3 remain in an up / up state (and nothing is connected to those ports!!), and only reflect the actual state after restarting the port.What steps could I do in order to troubleshoot this issue?. What should I look for, or how do I discriminate the problem? Might it be a hardware issue, a PoE issue?

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D-Link WBR 1310 Constantly Needs Rebooting

Jun 2, 2012

Why does my D-Link WBR 1310 Router constantly need rebooting? By rebooting I mean unplugging power source for 10-15 seconds then replugging it. This problem has been going on for the last 2-3 months.

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Cisco Switches :: SF 200-24P Switch Is Rebooting Constantly

Oct 15, 2011

I have a SF 200-24P Cisco switch that seems to be rebooting constantly, When i connect it to mains power it seems to go through a startup cycle,  in this order - i have tried this with no network devices attached and the same thing happens
 
1. Fan starts - continously runs

2. Very quick flash of all RJ45 ports.

3. After about 30 seconds, any network devices connected have an acticity light

4. After about another 45 seconds, all ports light up including the activity and POE orange LEDs for about 5- 10 seconds then go off.

5. About 10 seconds later the ports all light up again and stay on for about 5 seconds.

6. All ports go off and the cycle keeps repeating continously.
 
I have tried pinging the switch without success.I have also tried disconnecting all devices from each port with no success.At no time does the system LED on the left light up.I have tried resetting to factory default with reset pot on the left side.This is a brand new shipped switch from our cisco supplier, could it be DOA?

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Cisco Wireless :: 5508 / AP1141 Is Rebooting Constantly?

Oct 11, 2010

I have a set up with an 5508 controller and some AP1141.i get this in the log

LogSystem TimeTrap0Tue Oct 12 14:50:23 2010AP's Interface:0(802.11b) Operation State Up: Base Radio MAC:e8:04:62:60:76:50 Cause=Radio reset due to Init. Status:NA1Tue Oct 12 14:50:23 2010AP 'APf866.f292.b28e', MAC: e8:04:62:60:76:50 disassociated previously due to AP Reset. Uptime: 0 days, 00 h 26 m 38 s . Last reset reason: power loss.2Tue Oct 12 14:50:23 2010AP's Interface:0(802.11b) Operation State Up: Base Radio MAC:e8:04:62:0b:41:20 Cause=Radio interface reset. Status:NA3Tue Oct 12 14:50:23 2010AP's Interface:0(802.11b) Operation State Down: Base Radio MAC:e8:04:62:0b:41:20 Cause=Radio interface reset. Status:NA4Tue Oct 12 14:50:20 2010AP's Interface:0(802.11b) Operation State Up: Base Radio MAC:e8:04:62:0b:41:20 Cause=Radio reset due to Init. Status:NA5Tue Oct 12 14:50:20 2010AP 'APf866.f292.b2f2', MAC: e8:04:62:0b:41:20 disassociated previously due to AP Reset. Uptime: 0 days, 00 h 26 m 44 s . Last reset reason: power loss.6Tue Oct 12 14:49:52 2010AP's Interface:0(802.11b) Operation State Up: Base Radio MAC:e8:04:62:60:84:10 Cause=Radio interface reset. Status:NA7Tue Oct 12 14:49:52 2010AP's

[code]....

The ap's are powered from a 3560 poe switch, have movet the ap's to another switch, same problem Controller is running 7.0.98.0

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Cisco Routers :: RV016 V3 With Firmware 4.2.1.02 Constantly Rebooting?

Dec 6, 2012

I have an RV016 V3 with firmware 4.2.1.02 that is constantly rebooting making it unusable.  I have one LAN connect and 3 WAN's, 2 DSL's and one Cable Internet in a load balance config.  I have tried firmware 4.2.1.01 and it reboots also.  do I get and RMA from Linksys and send this pig back?

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Cisco Firewall :: ASA5510 Working In HA Config Now Constantly Rebooting

Mar 20, 2011

I have an ASA5510 that was working in a HA config that is now constantly rebooting itself. Here is a copy of the dump of traceback messages:

Booting system, please wait...
CISCO SYSTEMSEmbedded BIOS Version 1.0(11)5 08/28/08 15:11:51.82
Low Memory: 631 KBHigh Memory: 256 MBPCI Device Table.Bus Dev Func VendID DevID Class Irq 00 00 00 8086 2578 Host Bridge 00 01 00 8086 2579 PCI-to-PCI Bridge 00 03 00 8086 257B PCI-to-PCI Bridge 00 1C 00 8086 25AE PCI-to-PCI Bridge
[Code] .........

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Cisco Switching/Routing :: 1941 Keeps On Rebooting?

Nov 26, 2012

I've got a 1941 router that keeps on rebooting by itself every minute. currently, there's no power issue.
 
I've detected the show version returned a bus error. Is this an IOS bug?
 
ROUTER uptime is 1 minute
System returned to ROM by bus error at PC 0x222FE2D4, address 0xD0D0D71 at 14:27:13 SGT Tue Nov 27 2012

[Code].....

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Cisco Switching/Routing :: 400 Some IP Phones Are Not Getting Registered

May 13, 2012

I am  working in Private IT company. The facility is having 4000 users and it is a high resliency site having two core switches and nearly 40 access switches. All core and access switches are 4506E switches and odd vlan is taking core-1 and even vlan is core-2. We are having cisco ip phones 6921 connected as daisy chain.( Phone is connected to access switch and the desktop is connected to ip phones). The Ip phone are getting registered cisco call maneger server. The call manager one leg is connected to one core switch and another one is core 2 same like my DHCP server.
 
For all vlans the the default gateway is my firwall. The voice needs to hit the call manager, hence we have implemented a source routing to call manager for the voice vlans. the problem is once we down the Core-1 some of the IP phones are not getting registered no matterit is on odd or even vlan. The same issue for Core-2. We suspect that there might be some issue in the DHCP server for voice vlan routing. But server team is saying that there is no issue with the DHCP server.Now network is vulnerable that if any core switch is down my voice ip phones will be down.

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Cisco Switching/Routing :: 802.1x Clients Behind IP Phones

Jun 5, 2009

I have some Catalyst 3560 PoE switches running the latest 12.2(50)SE1 image.  I have a working configuration for STP, QoS, Voice & Access VLANs, Port-Security & IGMP snooping - I stress this is working PERFECTLY.  Now I have been playing with wired 802.1x port authentication for a while which again I have sucessfully deployed on ports without IP Phones.  I did some more testing with 802.1x clients behind some Cisco IP Phones and after understanding the issues and workarounds I thought I had a working environment.  The environment is XP SP3 with the new separate wired 802.1x supplicant, workstations are all in a 2003 AD Domain and the wired 802.1x settings are configured through group policy.  I had issues with Windows Server 2003 SP2 not working behind IP Phones but this I put down to the supplicant being different from the new one in XP SP3.  MS don't have any plans for Server 2003 SP3 (or XP x64 SP3?) nor can I find any hotfixes to resolve this so it's a 'caveat'.Anyway I have tested this many times and with XP SP3 and the new supplicant it all seems to work well (only the access VLAN is using 802.1x Authentication, I am not authenticating the IP Phones via 802.1x).
 
Now today it stopped working and 802.1x clients behind the 7970 IP Phones no longer authenticate.  I have spent an hour or so looking at this and the IOS is the same, as is the configuration on the IAS (Radius) server, as are the XP clients.  I was scratching my head a bit and then looked at the IP Phone - the software on the phone has been upgraded to 8.5(2) - previously it was 8.4(4).  I managed tp downgrade the software via CUCM to 8.4(4) and it now works.  I have retested it several times so this is obviously an issue (either a new feature or a bug?) with the latest code for the 7970.  I have checked and it's the same codebase for all the latest IP Phones - 7906, 7911, 7931, 7941, 7942, 7945, 7961, 7962, 7965, 7970, 7971 & 7975 which was released on 1st June.  I have looked through the release notes and EAP-FAST has been added but this is an update to the EAP supplicant on the phone and not a feature of the 802.1x pass-thru from the attached device.  I can find no other 802.1x or EAP references.

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Cisco Switching/Routing :: 3750x Rebooting Itself Randomly?

Nov 24, 2012

I have a switch which is rebooting it self, we bought it a year back,its a new switch, i did not find any error on sh ver after rebooting. I am using OP manager, i did not receive any alerts. I have done all diagnostic test, all are passed, i did not find any problem..

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Cisco Switching/Routing :: Cat 4500 Supervisor 7-E Is Rebooting

Apr 24, 2013

I'm having a trouble with a 4510R+E switch.  The WS-X45-SUP7-E supervisors are constantly rebooting, and we can see a 'critical software exception reload' reason. We have checked the logs
 
______ uptime is 5 weeks, 1 day, 19 hours, 3 minutes
Uptime for this control processor is 37 minutes
System returned to ROM by reload

[Code]....

What can we do to solve this incident?. Everything was working fine, and suddently the problem arose.

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Cisco :: TDM Switching E1 And Polycom RMX

Mar 28, 2012

i've some trouble configuring a TDM switch PRI-to-PRI from Telco to an RMX 1500. After a lot of hours spent on configuration now i can receive and make call from the RMX, but only two channels. When I try to make a third call I get "Cause i = 0x82AC - Requested circuit/channel not available" This is the HW configuration: Cisco 2811 (IOS Version 12.4(25c)) with 2 VWIC2-2MFT-T1/E1, 16-PVDM2 and 64-PVDM2 on the first VWIC i've two Telco PRI (each with 15 bi-directional channel), on the second VWIC i've connected with E1 cross-cable the RMX 1500 with 6 timeslots configured, This router already doing VoIP translation from the Telco PRI to an Asterisk PBX (fax and DID).

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Cisco Switching/Routing :: 3560 Switch Is Rebooting Daily

Feb 12, 2013

I have observed a situation where one of our cisco switch 3560 is rebooting daily at periodic times.We have checked the power cables and source everything is fine and still clueless whats causing the issue. [code]

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Cisco Switching/Routing :: WS-C4506-E Sometimes Phones Will Not Take Power

Mar 12, 2013

We are facing problem with Cisco IP phones which are connected to module WS-X4248-RJ45V.Phones are getting restarted and sometimes phones will not take power.Initially we suspected issue with power consumption, but we have enough power in the module.

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Cisco Switching/Routing :: Replace Master In 3750 Stack Without Rebooting

Feb 27, 2013

I have two like switches in a stack (WS-C3750G-48PS 15.0(1)SE2 C3750-IPBASEK9-M). Switch#1 is the master and is the one that needs to be replaced. Can I force Switch #2 to be the master, then power down switch#1, remove switch#1, insert the replacement, and then power on the newly added switch without shutting down or rebooting switch#2?

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Cisco Switching/Routing :: C3560-24P Spontaneously Rebooting When Clients Try To Print

Feb 19, 2013

I have a C3560-24P PoE switch, running on a very small network with nothing special about the endpoints or the configuration (5 laptops connecting via 1 wireless AP, 1 firewall uplink, a networked printer and one conference room phone using PoE.   That's it.)   I actually have inline power turned off on all the non-PoE device ports.
 
We are encountering a very strangle anomaly where if a client attempts to send a print job through the switch, to the network printer, the printer makes a noise as it if's begun to initialize and then the switch immediately goes into a reboot.   Also the reboot appears to immediately drain all he batter power from the UPS unit that it's connected to.   The unit is an APC SmartUPS 750 (500W, 750VA) and when the switch reboots the load on the UPS jumps to well above 100% until the switch appears to 'level out'.  Is that kind of power draw normal when rebooting a C3560?
 
Switch details:
IOS version: c3560-ipbasek9-mz.150-2.SE1
128MB Memory
512K nvram
Model Revision: F0

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Cisco Switching/Routing :: Catalyst 2960 POE With Pre Standard IP Phones

Mar 21, 2013

I have a Catalyst 2960-S switch and a pre-standard IP Phone (Cisco 7960). When I connect the phone to the switch the switch recognizes the phone and supplies power. I would like to prevent this behaviour. ie. I would like to disable detection of pre-standard equipment. Is there a command I can issue on the 2960-S to do this? For example, on a switch from a different vendor I can issue the command: no power pre-std-detect to prevent it from detecting the 7960 phone, is there an equivalent command on the Catalyst 2960-S ?

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Cisco Switching/Routing :: 7911 - IP Phones Stuck In Registering

Nov 18, 2012

We have a couple of 7911 that get stuck in Registering, each monday. During the week, no user reports the problem. But after the weekend, we get ready to hear complaints from our collegues. The same phones often experience this issue, although the other phones report no problems. The problem is temporarily solved when we issue "shut/no shut" on switch ports.

phone firmware version: SCCP11.8-5-2S
Interface configuration:
interface FastEthernet1/0/27

[Code].....

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Cisco Switching/Routing :: Will ACL110 Allow IP Phones Communicate With VoIP Server

Nov 13, 2011

Will ACL110 allow IP phones communicate with VoIP server. Do I need to add line to allow multicast traffic? [code]

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Cisco Switching/Routing :: 3560 Ports Have Stopped Powering Phones

Apr 9, 2012

We are experiencing two of our layer 3 switches (3560 PoE and 3750 PoE) switches giving us problems with giving power to IP phones. These switches have an embedded PoE module and would previously give power to all IP phones on all its ports. Now all of a sudden over the past few months 6 of these ports have stopped powering phones. The phones are the same ie. 7911 and they take less than 15.4 W. We believe that the PoE module has started malfunctioning and has stopped giving power to all the ports. The port 'grants' power and then removes it. Below is a link showing all the messaged we receive on the terminal session. It is NOT a hardware fault with the PoE: [code]

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Cisco Switching/Routing :: IP Phones 7960 / 7940 Getting Data VLAN IP

Apr 9, 2013

I have a Cisco 6500 which has two VLANs defined
 
VLAN 30 for Data VLAN
VLAN 31 for Voice VLAN
 
I have two Cisco 3750 switches.both switches are connected to IP Phones.the configuration of Cisco 6500 Trunk Port to Cisco 3750 is [code] On Cisco 3750, the trunk port to 6500 has the configuration [code].The IP Phones connected to the Cisco 3750 are 7911,7979, 7940, 7961.
 
All phone are working fine, the phones get their ip address from voice vlan, and systems connected to phones get from data vlan, except 7940/7960.

These two models of IP Phones remain on Configuring IP, and when you check the IP Settings, it gives Data VLAN IP, which does not have a TFTP.once you manually enter TFTP address in the field, it registers instantly, due to ip routing in the network.
 
these phones were working fine before, but suddenly few days back they went out of the network, and still are in Configuring IP state.I also tried to convert these ports connected to 7940/7960 to access ports [code] but still the IP is taken from the Access Vlan (30). Even If you configure a single VLAN on these ports, the IP phones then never get the IP.

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Cisco Switching/Routing :: C3560 DHCP Server For Nortel IP Phones

Oct 7, 2012

I just trying to setup a dhcp server in my catalyst 3560 switch for a nortel ip phones. I show you mmy configuration:

VOICE VLAN: 3
DATA VLAN: 1

S1:10.2.110.200
port:4100
Nortel IP Phones: IP 2002 (Firmware Version 0604D9H) & IP 1110 (Firmware Version 0623C7)

Switch Configuration:
aaa new-model!aaa session-id commonip subnet-zeroip routing!ip dhcp pool datos network 10.2.100.0 255.255.255.0 default-router 10.2.100.1 lease 0 2!ip dhcp pool voice network 10.2.110.0 255.255.255.0 default-router 10.2.110.200 option 191 ascii "VLAN-A:3" option 128 ascii "Nortel-i2004-A,10.2.100.200:4100,1,5." lease 0 2!!!!no file verify autospanning-tree mode pvstspanning-tree extend system-id!vlan internal allocation policy
[Code]...

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Cisco Switching/Routing :: WS-6509 / VoIP Phones Random Outage?

Jan 2, 2012

All of our VoIP phones bounced (re-registered) in the middle of the work day and we do not know why. There is no maintenance going on at this time. The phones came back up right away. Upon further investigation, I only found one error message on our core switch (WS-6509 running IOS ver. 12.2(18)SXF13) and I'm wondering if that was the cause:
 
Jan  3 13:51:04.030: %SIBYTE-SP-5-SB_OUT_OF_RX_DSCR_CH1: Out of RX descriptors on mac 0 - channel 1 (count: 299)
 
I cannot find any other instances of this error message from the internet.

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Cisco Switching/Routing :: Nexus 5548 Rebooting Continually After Installing L3 Base License

Jul 30, 2012

we recently purchased L3 daughter cards (N55-D160L3-V2) for our 5548UPs along with the LAN Enterprise Services licenses (N55-LAN1K9).
 
I installed the cards and Ent Svcs lic this past weekend and everything went well excep that I couldn't enable the EIGRP feature .. apparently EIGRP requires the LAN Base (N55-BAS1K9-BUN) license even when you have the Enterprise lic installed, so I was able to dig up that license eventually (which comes with the L3 daughter card, incidentally). Another side effect of not installing the Lan Base lic is that the L3 card/module will be in an "offline" state until the Lan Base lic is installed. Either way, everything was working normally in L2 mode at this time.
 
So, here I was thinking I was ready to proceed with enabling L3 - this morning I installed the LAN Base license on one of the 5548s which apparently triggered the L3 Daughter card module to go active and triggered a switch reboot. Ok, not that big of a deal, knew that was probably coming. I expected the switch to come back up normally .. NOPE. The switch went into a continual reboot cycle where the console prompt would appear, then about 30 seconds later, would reboot again.
 
I finally ended up re-installing the original L2 card and the switch came right up. I see that LAN Base and LAN Enterprise are both still installed as well.
 
What have I done wrong here?  Why did the switch go into a continuous reboot cycle once I installed the LAN Base license?
 
Here are more details :
 
Software
BIOS:      version 3.5.0
loader:    version N/A

[Code]....

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Cisco Switching/Routing :: 4506 Phones Connected To Module Went Down / Messages Logged On Console

Sep 25, 2011

We are facing issue with one of the module installed on cico 4506 swicth. All of a sudden cisco phones connected to that module went down and the messages logged on the console. [code]

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Cisco Switching/Routing :: 2960 POE Switch Voice Vlan Configuration To Work With Non IP Phones?

Apr 12, 2012

provide a sample Voice Vlan configuration for the Cisco 2960 POE switch to work with the Non-Cisco IP Phones? 
 
Will these commands work?  Vlan 2 is the new voice vlan, Vlan 1 is the data vlan.
 
mls qos 
interface fastethernet 0/1mls qos trust cos switchport nonegotiateswitchport mode trunkswitchport trunk encapsulation dot1qswitchport voice vlan 2priority−queue outspanning-tree portfastspanning−tree bpduguard enable
vlan 2name voice

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Cisco Switching/Routing :: 2975 Not Handing Out PoE Power To Phones And Access Points At Random Times

Oct 22, 2012

We currently have around 150 2975 switches and have had problems with it them not handing out PoE power to the cisco phones and access points at random times.  There is plenty of power left for the switch to use.  We have at least 15 that will be running fine for about a week and then all of the devices that use PoE power will shut off and will not come back on until we reload the switch.  If you console in there aren't any messages that pop up and if you look at the port it just shows on connected or will show IeeePD in the power inline.  We have contacted Cisco TAC and they just RMA them. 

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Cisco Switching/Routing :: 3750 Switch Need To Constantly Clear ARP Cache

Aug 19, 2012

We have a 3750x switch with some issues on the arp. Our servers become unreachable for some time, buy when I clear the arp cache, I am able to ping the server again. I have tried adjusting the arp timeout but I don't think doing so would be the permanent solution.

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Cisco VPN :: 8961 - IP Phones With AnyConnect On ASA / Can't Call Other Remote Phones

Jan 4, 2012

I have a CUCM BE environment with a number of remote users with 8961 phones connecting to an ASA 5501 via AnyConnect.  The phones register fine and can make inbound/outbound calls as well as four digit dialing to other users at the corporate site.
 
The problem is when a remote user tries to four digit dial another remote phone.  The called phone will ring but there is dead air once answered and then the line goes dead.
 
This sounds like a routing issue to me. How to get AnyConnect clients to be able to reach each other?

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Cisco Switching/Routing :: Configuring COS On 2960G Switches With Non-Cisco Phones

Mar 1, 2012

I have 7 POE switches that have ESI IP phones attached.  I have two VLANS, 1 and 2.  VLAN 2 is used for voice and is defined in each switch.The ESI IP phones connect to my POE switch ports and the pc attaches through the ESI IP phone.
 
I have had voice quality issue between floors in my building.  Talking to others on my floor via the IP phone, there are no voice quality issues. [code]

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