Re: [c-nsp] How Cisco TAC troubleshoots router/switch crash using the stack frames?

2013-06-03 Thread Michael Loftis
On Mon, Jun 3, 2013 at 4:53 AM, Martin T wrote: > Hello, > > 1) Am I correct that IOS, similarly to Linux kernel, has a separate > stack for each process and each time a process makes a function call, > a stack frame is added to stack containing information about function, > it's arguments and var

Re: [c-nsp] Sup-720 fabric failures

2013-07-05 Thread Michael Loftis
Just very recently had this happen with a Brocade ADX SSL Accelerator upgrade board. On first boot it would crash the ADX a few times until everything warmed up, and then appeared to be more or less ok. If we shutdown the nodes in the cabinet with it, it would cool off too much and never come up,

Re: [c-nsp] High memory usage of Cisco PIX 515e

2011-06-02 Thread Michael Loftis
On Thu, Jun 2, 2011 at 12:59 AM, teklay gebremichael wrote: > hello, > I am observing increased memory usage of my Cisco PIX firewall. I tried even > to <...> > pix# sh conn count > 9597 in use, 22745 most used > pix# sh xlate count > 14101 in use, 26759 most used I don't think that there is any

Re: [c-nsp] Telnet session dropped

2011-12-27 Thread Michael Loftis
Actually it could also be the telnet prompt timeout settings. The command interpreter gets done long before you see all the output (buffered on the devices end) and therefore you get timed out and disconnected long before the buffer actually drains. Try setting/increasing the idle timeouts. On T

Re: [c-nsp] Config management

2012-10-26 Thread Michael Loftis
On Fri, Oct 26, 2012 at 1:01 PM, Scott Voll wrote: > Solarwinds or Rancid. RANCID is really only good for config change monitoring out of the box...and it'd be a pretty big leap I think to get it to do actual configuration management. However, the clogin tool would be a place to start to build a

Re: [c-nsp] Freeing up BGP memory?

2012-12-06 Thread Michael Loftis
It seemed to me that it holds onto the memory until at the very least that peer is reset/clear-ed, and might until a clear ip bgp * is issued. We recently had a 6506 (same SUP IIRC) go OOM tailspin too. The fault was mine, insufficient monitoring. Had to remove soft reconfig and move some peers

Re: [c-nsp] Twinax trivia check (was Re: Is there such a thing as a 10GBase-T SFP+ transciever)

2014-02-03 Thread Michael Loftis
On Monday, February 3, 2014, Jared Mauch wrote: > > On Feb 2, 2014, at 9:35 PM, Jeff Kell > > wrote: > > > Still somewhat of a mystery, as there is no proper "twinax" standard > > like there is with 10G-SR, LR, LRM, ER, etc. > > Just picking one at random from google.. > > > http://www.cdw.com/sh

Re: [c-nsp] Followup: ARP on ASR9k 4.3.2

2014-02-12 Thread Michael Loftis
Not surprising to me actually since this behavior is the default for Linux. Linux will also respond to ARPs where it shouldn't (set an IP on an lo interface or just another interface, and it will ARP reply for that IP on other interfaces that it does not belong on). On Wed, Feb 12, 2014 at 2:36 A

Re: [c-nsp] CRS-1 doesn't share power load.

2014-03-17 Thread Michael Loftis
On Sunday, March 16, 2014, PlaWanSai RMUTT CPE IX wrote: > Why doesn't CRS-1 share power load? > > > > RP/0/RP0/CPU0:cm-1(admin)#sho env pow > > Power SupplyVoltageCurrent > > DC-PEM DC-PEM(V) (A) > > Zone 1:[A], [B]

Re: [c-nsp] Sup1A Li Ion battery

2014-05-07 Thread Michael Loftis
To replace it you desolder it. They sell them with the tabs. I don't have a sup1a but the battery is probably a BR1632A unless it's upright... I can't remember the part for the upright one. On Wednesday, May 7, 2014, Chris Boyd wrote: > Doing some volunteer work for a charity, and the old Sup1A

Re: [c-nsp] IOS: catch 22 when enabling new bgp neighbors

2014-06-20 Thread Michael Loftis
ok remote-as actually sorry On Fri, Jun 20, 2014 at 11:00 AM, Michael Loftis wrote: > neigh xx peer-as shutdown > > Problem solved. > > On Fri, Jun 20, 2014 at 9:37 AM, Scott Granados > wrote: >> So this is not a stupid question at all. I’ve wondered about thi

Re: [c-nsp] IOS: catch 22 when enabling new bgp neighbors

2014-06-20 Thread Michael Loftis
neigh xx peer-as shutdown Problem solved. On Fri, Jun 20, 2014 at 9:37 AM, Scott Granados wrote: > So this is not a stupid question at all. I’ve wondered about this myself. I > suspect the reason your terminal slows is the CPU spikes when adding a new > neighbor and the session esta

Re: [c-nsp] Galvanic isolation for Ethernet?

2014-08-19 Thread Michael Loftis
On Tue, Aug 19, 2014 at 8:33 AM, Victor Sudakov wrote: > Michael Loftis wrote: >> No standard surge protector will help at all for you I'm betting. > > I have already guessed that therefore I was asking for something > better than standard :-) > >> As >&g

Re: [c-nsp] Galvanic isolation for Ethernet?

2014-08-20 Thread Michael Loftis
On Wed, Aug 20, 2014 at 1:10 AM, Victor Sudakov wrote: > Michael Loftis wrote: >> >> Many RJ45 ports have integrated magnetics now (transformer) - external >> options are made by pulse, bel, halo, and many others. As for >> external magnetics they're small -

Re: [c-nsp] Inter-op with Juniper EX4200 Using LACP Link Protection

2014-12-20 Thread Michael Loftis
On Saturday, December 20, 2014, Devon True wrote: > Hi Cisco-NSP, > > We have a pair of Cisco Nexus 7000s switches connecting into one Juniper > EX4200 switch using a vPC port-channel. On the Juniper side they are using > LACP Link Protection ( > http://www.juniper.net/techpubs/en_US/junos13.3/to

[c-nsp] Inter-op with Juniper EX4200 Using LACP Link Protection

2014-12-20 Thread Michael Loftis
ter/sw/5_x/nx-os/interfaces/configuration/guide/if_cli/if_portchannel.html#> On Saturday, December 20, 2014, Michael Loftis > wrote: > > > On Saturday, December 20, 2014, Devon True wrote: > >> Hi Cisco-NSP, >> >> We have a pair of Cisco Nexus 7000s switche

Re: [c-nsp] Cisco 10G gear

2015-01-17 Thread Michael Loftis
On Friday, January 16, 2015, Chris Knipe wrote: > Hi All, > > I have a 6500 that I want to equip with 10G. I am as confused as I can be > in terms of what is / is not supported. > > I am looking at the WS-X6704-10G cards - > > http://www.cisco.com/c/en/us/solutions/collateral/data-center-virtual

Re: [c-nsp] Cisco SG500XG 10GE switch

2015-03-16 Thread Michael Loftis
Being the "small business" line lately generally means not managed in the war we would think of it - strictly in band web based. There are standalone managed OEOs out there though. On Monday, March 16, 2015, Philip Smith wrote: > Hi everyone, > > This is a bit of a long shot, I know... > > Does

Re: [c-nsp] SFP DOM SNMP Polling?

2016-11-22 Thread Michael Loftis
On Tue, Nov 22, 2016 at 6:32 AM, Tim Durack wrote: > I have a vendor that does not support SFP DOM SNMP polling. They state this > is due to EEPROM read life cycle. Constant reads will damage the SFP. Complete and total garbage. Reading from EEPROM and Flash both DO NOT WEAR. It is the erase+wr

Re: [c-nsp] 3750 taking errors on multiple ports

2022-07-12 Thread Michael Loftis
On Tue, Jul 12, 2022 at 16:50 Randy Bush wrote: > > some hours back, an antique Cisco WS-C3750G-POE-48 started taking output > > errors on multiple ports. they are generally vlan edge, a la > > > > interface GigabitEthernet1/0/31 > > description x.sea eth1 > > switchport access vlan 10 > > thi

Re: [c-nsp] Running two VPN clients on PC

2010-11-05 Thread Michael Loftis
On Fri, Nov 5, 2010 at 1:30 PM, Jay Nakamura wrote: > I have been running Cisco IPSec client and Anyconnect client at the > same time on XP lately so I can connect back to the office and connect > to customer network at the same time and it works great.  However, > once I went to Win7, I noticed t

Re: [c-nsp] Unstable IOS Version for LNS on Cisco 7206 NPE-G2

2010-11-10 Thread Michael Loftis
SegV is most certainly not always software. Stuck bits in IO memory or in memory used by a PPP session description could easily cause a SegV. The POST isn't completely exhaustive. examining the crash dumps can help discern if its a hardware or software issue. I wouldn't rule out either. Open a TAC

Re: [c-nsp] Unstable IOS Version for LNS on Cisco 7206 NPE-G2

2010-11-11 Thread Michael Loftis
On Thu, Nov 11, 2010 at 7:08 AM, Matlock, Kenneth L wrote: > Always, huh? > > So it's 100% not possible ever for one or more memory locations to get > corrupted (due to a bad memory chip), and put an invalid pointer in an array, > and the IOS uses that pointer to access a memory area it's not >

Re: [c-nsp] Software Download Enhancements

2010-11-15 Thread Michael Loftis
On Mon, Nov 15, 2010 at 2:49 PM, Gert Doering wrote: > Hi, > > On Mon, Nov 15, 2010 at 08:34:35PM +0100, Pavel Skovajsa wrote: >> I have just received notification below. >> >> >> Get Ready for Software Download Enhancements on Cisco Website > > Enhancements, heh.