Need High-Level design validation before I implement the attached network on Meraki MS and MX switches. Also, please refer to the diagram for the following questions: 1. In the event of switch 1 failure and the links on the Meraki Active MX250 goes ...
Forum Posts
Hi dear brothers and sisters, We are looking to refresh our legacy Alcatel Omniswitch 6850 with Cisco Catalyst 3850, this is the actual scenario: router---->Alcatel Omniswitch 6850----optical fiber------->Alcatel Omniswtich 6850 ...
I've been reading the posts, here and on other forums from users having the "Mainboard hardware authentication failed. Abort init ..." error following an (failed) IOS update. I've read the posts and have found anything that explains this: When com...
Hi There Are you able to add interfaces of varying speeds into a Port-Channel? Specifically adding a 10Gb and a 40Gb interface into the same Port-Channel on a Nexus 9200 series switch? I know that technically all interfaces in a port-channel shou...
Hey experts... I'm hoping that someone here can help me understand what the problem might be with our environment and multicast issues. I've read through dozens of threads here on cisco forum as well as fortinet and others. I've tried everything I ca...
Resolved! ciro dhcp
hi I have a router 2901 my problem and this in a 192.168.2.0 network the hosts are all in dhcp and I created a pool that says that the address in dhcp for that host must always be the same, because on that address there I put a deny rule but 'when th...
I am trying to connect two 2960X switches with SFP's . The ports show down and down. If I do show inv, the system shows the SFP. If I try to run any of the Show Interface Transceiver commands it does not find the SFP on either switch. An SFP shoul...
We just got Catalyst 9400 switch chasi and I am currently trying to find the best compatible IOS for the switch. Any advised as how to pick the best IOS ?
Hi I have a 2960XR switch stack running 15.0(2a)EX5 on both (2 switches in a stack) and have created a new vlan - When I connect a laptop to that vlan in switch 1 (master) it works but does not when connected to switch 2 - this is only for the new...
Hello guys sorry to bother you, I'm new on this, and a have a question. I', completely new in routing-networking and IPv6 LACNIC assigned me a /64 IPv6 class to publish vía BGP, so I asked to my provider to enable BGP IPv6 capabilities to their rou...
Hi SupportCommunityI hope that you can help with this. I am having Cisco 3845 series router with c3900-universalk9-mz.SPA.151-4.M2.bin IOS . I want to install new Licence on it for DATA. When i am trying to install licence on it i am facing the erro...
hello what could be the reason to get that kind of ping respond Switch: 3132Q Router/Firewall: DELL R320 Chelsio T580-SO-CR 2x40Gb ports OS: pfSense Server: DELL R710 Mellanox ConnectX-3 network adapter 2x40Gb ports OS: ESXI VM: Windows Serv...
I have 2 WS-C2960L-24PS-LL switches running (C2960L-UNIVERSALK9-M), Version 15.2(6)E2, RELEASE SOFTWARE (fc4). I have a L3 vlan interface on each. I getting spammed by gratuitous arp replies for the standby IP address, about 600 of them every second....
Dear all i had config HSRP on 2 switches cisco Nexus 7000 non vPC: SW_N7K_01# show run interface vlan111version 6.2(2)!interface Vlan111 no ip redirects ip address 172.16.33.245/28 ip router ospf 1 area 0.0.0.0 hsrp version 2 hsrp 1 preempt ...
The following command is used when configuring ISE on a Cisco Switch: "authentication timer inactivity server dynamic". The "authentication timer inactivity server" command is compatible with all IOS versions. However, the addition of the final key w...
