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Hello, I would like to have some confirmation concerning the upgrade of a VSS with 2 6506 (with one SUP card). I would like to upgrade from version 15.1(1)SY to 15.2.1-SY5. Question 1: I see that they are 2 different method (from more disruptive to l...

Xavillon by Level 1
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  • 2 replies
  • 0 Helpful votes

Good Afternoon, I have a 3850 that recently failed to boot after a building power cut. I tried to load the IOS from ROMMON but it continued to fail. I resolved the issue by booting an image from TFTP, then once the switch was back up I loaded a new i...

Hi, getting below error on router %RF_ISSU-3-INVALID_SESSION: RF ISSU client on domain (0) does not have a valid registered session %PKI-6-CERTRENEWAUTO: Renewing the router certificate for trustpoint Web-VPN-CA System image file is "bootflash:is...

Resolved! UDLD and RSTP

Hi,I would like to understand if UDLD is useful in a situation where RSTP is implemented.I read somewhere that UDLD timers are too slow in the case of RSTP, and that Loopguard need to be configured as expedient.Elsewhere I read a different opinion, i...

Mary88 by Level 1
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  • 3 replies
  • 0 Helpful votes

Resolved! Timestamp problem

Hi, I have a strange problem with one of my 2960x switch. The timestamp display a "." at the beggining of the line, for example : .Aug 28 16:00:30.951 CEST: %SEC_LOGIN-5-LOGIN_SUCCESS: And a correct one : Aug 28 15:51:18.428 CEST: %SEC_LOGIN-5-LOGIN_...

Hi, We are trying to convert a cisco 1900 configuration onto a Catalyst 3560 but having issues with the multiple interfaces and routing. We have a router at each side of the P2P link with the following configuration. (IP Addresses different at opposi...

Jopenm123 by Level 1
  • 623 Views
  • 8 replies
  • 0 Helpful votes

I'm having an odd issue where i have 2 switches connected together one link via comcast ethernet service and the other via a wireless link. I have the switches set to per vlan RSTP. Switch 1 is the root and switch 2 is the downstream switch. On switc...

HiLooking to SPAN all traffic on a 2960 switch to a single port to dump it into NTOP.  Are there likely to be any performance issues on a 2960 due to SPANning? I found quite a nice article on the 6500 series that saysOn the Catalyst 5500/5000 and 650...

Hi All,I need to locate a server that is located in the data centre. The problem is that I don't have physical access, so I'm doing the following:The server has the IP 172.16.9.12The CORE switch 4506 shows the IP directly connected and the MAC via Po...

Could somebody explain how i should look/use ACL's when a packet travels through different VLAN's?For example, the following topology:  - The 192.168.x.x subnets are subinterfaces on the ASA's.- The 10.0.10.0/24 network is VLAN50- The 192.168.x.x net...

K5qkkgF

Dear all,I have a catalyst 4500 series swtich version (cat4500e-UNIVERSAL-M), Version 03.08.01.EI am connected to another L3 switch which conneting me to the internet and I name it internet_switch.From the port which is directely connected to the int...