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Forum Posts
For security reasons I would like to upgrading my Cisco 3825 router from 12.4(13r)T to 15.1.4M12a. Does 15.1.4M12a have any dependencies going from 12.4 to 15.1? Or can I upgrade directly? Thank you,Dan
Hi,I have a LAG with port 8 (copper) and port 16 (fiber) between two SG550XG-8F8TOne leg of the LAG sometimes change from active to standby and I couldn't find a way to go back to Active.Latest firmware 2.4.5.71 on both switches. No issue on port 16....
Hi all,I've got a problem with some sfps which status are "GigabitEthernet is down, line protocol is down (notconnect)"I've got the impression that this is a problem with the hardware (either the sfps or the fibers between them) since configuration w...
Hi All, I have a quick question regarding switch stack uplinks. A customer has a stack of 8 x Cisco Catalyst 9300 switches but only two of the switches have 10GbE uplink modules installed which are currently n switches 1 and 2 (which are also config...
I have come across a cat45x device that I at first thought just had a bad rommon installed. The hardware looks almost identical to a C4540-X, with the air intake slot along the top of the front, but some of the details such as air vent patterns look ...
Resolved! GLBP AVF Priority
Hello In the below debug output what is priority 135 & 167, why and How they used in GLBP AVF election. What I know is weighting used in the election of GLBP AVF. ( in my case all devices having default weight) But I couldn't understand clearly...
Hi, As i know we can do port mirroring in Cisco switches by following monitor session 1 destination int g1/0/1 monitor session 1 source port g1/0/2 or source vlan 350 Can anyone tell me how i can use Vlan ACL in this scenario??
Kindly i face a porblem that all switch's ports are down dwon (status and protocol) .. triing to write shutdown then no shutdown but this is what i have got, so there is any solution for this problem..? Thanks,
Resolved! Switch default ACL
Dear All, I would like to ask about ACL for switch in default configuration. When i see "sh ip access-list" in cisco switch,it show below output. Extended IP access list CISCO-CWA-URL-REDIRECT-ACL 100 deny udp any any eq domain 101 deny tcp any any...
Hi Experts, My boss told me that they were on a /16 network before yet they are segmented. How did they do that? Is it even possible as I imagine all of their network devices will be on a single broadcast domain? This is possbile for statically assig...
Hi all I configured an erspan session running on a Nexus 3k with 2 sources:1st source is an interface on the same switch2nd source is a set of vlans which go through a trunk port which already has a span session runningConfig is as below: monitor ses...
Dear Experts ,I've found one document in which SNMP is used to to copy a configuration file to and from a Cisco device with the CISCO-CONFIG-COPY-MIB.It is not supported on Catalyst switches.Anybody has any idea how to the same on Catalyst switches.(...
Hello,I have a question about stacking two cisco 3850 switches. I configured the 3850-12s switches and connected the stack cable. Ater bootup I saw at command show switch:Switch 1 -> active -> Priority 15 -> readySwitch 2 -> Standby ->Priority 1 -> r...
Hi,Can I configure LACP with 2 network ports, one port going to switch 1 and second port going to switch2 and have active activeconfiguration so that load is shared across 2 links. switch1 and switch2 are two switches in a Cisco 3750 stack configura...
Hello All, Just wonder if some of you faced a configuration problems in CCW for CAT9300 switches. For many models the DNA license option is missing or can't be modified and when I try to select the C9300-NM-8X module (which is unlikely missing by ...
