Hi , I have a switch 3750 stacked , I don't have IP-phone some of my links get up & down repeatedly (I see this in switches 2960 too) Jul 1 10:24:12.159: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/3, changed state to downJul 1 10:25:03.831: %LINK-3...
Forum Posts
Hi, is it possible to use breakout cable QSFP-4SFP25G-CUxM in Cisco Nexus N9K-C93108TC-FX3? On the tmgmatrix.cisco.com stays it is compatible but in CCW there is no that cable option.
HI,Planning to upgrade 6807 in VSS Quad-SUP using ( Fast Software Upgrade )From version s6t64-adventerprisek9-mz.SPA.155-1.SY7 TO s6t64-adventerprisek9-mz.SPA.155-1.SY10.bin Have few hours of maintenance window and would like to know best approach fo...
I'm working with a Catalyst C9500-32C on version 17.1.1. I have a QSFP-4SFP25G-CU5M module in port 2(the port is breakout enabled). Cisco Optics-to-Device Compatibility Matrix shows that QSFP-4SFP25G-CU5M is compatible with C9500-32C on version 17.1....
I'm trying to fully understand the flow of L2 traffic.Lets say there are two or three intermediate l2 switches between me and my default gateway.If I understand correctly, l2 to l2 does not inspect the l3 headers, meaning the switches don't know what...
I have a Cisco 1941 router. I only have 2 Gig ports on it. I need to connect 2 ISPs. I know I can do subinterfaces on each port. The question is how do I connect the cables for the 2 ISPs once i create the subinterface.Lets say I am going to use g0/...
Hello Expert,I'm working on a somewhat complex network design and could use your expertise. I have two sites, each with a similar setup: a firewall and a Layer 3 switch.At Site 1, the firewall is deployed in a "router-on-a-stick" configuration with t...
Resolved! Problem with Web Browser and ACL
Hello guys I just made this simple topology with 3 router, 3 switch 3 pc on 1 switch, 3 on other, and last switch with a web server (internet) and a dns server. I also activated RIP between all the routers and ACL permit on the router connected to in...
Hi all, On a couple of C9500 40x in VSS I need to replace the 10Gb VSL links with 40Gb links. So I need to go from here: stackwise-virtual domain 255 interface TenGigabitEthernet1/0/39 stackwise-virtual link 1 ! interface TenGigabitEthernet1/0/40 ...
Resolved! Blocking a website from a cisco Router
Hi.,Community People.How best can i prevent my inside network from accessing a certain website:for instance, url: www.Blinkstreamz with IP: 213.176.3.30. ''ip route 213.176.3.0 255.255.255.0 null0 name Blinkstreamz''Can the above route suffice to bl...
Consider the following scenario:Switch port on Cisco 3650 configured with authentication host-mode multi-auth and switchport access vlan 101Unmanaged 'dumb' switch connected to a switchport on the Cisco switchTwo devices connected to the unmanaged sw...
We have an issue since a long time upgrading the software of a Catalyst 9300 Switch. We are currently running 17.03.04 and wanted back then to 17.09.05 and right now to 17.12.04. The Problem, there is a virtualization machine connected with multiple ...
I am trying to troubleshoot/investigate this issue and it does not seem to be making any sense to me.I have a Nexus C9300-48U version (Version 17.9.2r CAT9K_IOSXE). The switch is configured to talk to 3 Cisco ISE PSN nodes, node1, node2, and node3 (...
I'm looking for confirmation of my thinking being correct, or corrections where wrong. Here is my situation: Large School District with construction nearing completion of a new building where the core of our network will be moved. Right now we have...
i am searching about the Eve Nexus 9k, which includes the VRF feature. I downloaded 9.3.9, but it does not include VRF. I want image series 9300Does anyone know what exactly that ver that I downloaded? ?
