Hi All I have a couple question regarding the Cisco SG300x switches and stacking. I am new to Cisco in general so doing plenty of planning. I want to stack 2 SG300x switches and have full redundancy in case of failure: Because there are only 2 s...
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We have 4500 VSS switches and want to configure SPAN from a specific VLAN configured on the VSS switch to one Destination. The question is whether the VSS switches will replicate the traffic between them? The second question if we SPAN from one VLAN ...
I have 1 cisco 7945 ip phone can't get L2/L3 working when attached to 1 particular switch but it works on other switch. I just don get it why it won't work on that particular switch. Switch port config is correct. What I noticed: 7945 phone MAC is ...
Resolved! Catalyst 3560 ios upgrade to 15.x
Hi, Now since my switch Cat 3560 Poe-24 has only 15 megs of Flash memory and latest catalyst software is approximately 20 megs in size, I just wondered is there any way of upgrading Flash module on the switch with more capacity?
Does the "sh inventory" command show the power supply that come out as bad in the "sh environment all" command?
Is the CISCO switch N2K-C2248TP-1GE able to auto-negotiation at 100mbps ? From cisco documentation I found: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/release/notes/Rel_5_0_2_N1_1/Nexus5000_Release_Notes_5_0_2_N2_1a.ht...
Hi, We have a building alarm panel with a network adapter, this is connected to a 3750E switch. It was working just fine and now suddenly we can't connect to it. Ping fails and an arp lookup returns 'incomplete', adding a static arp entry also ma...
how to back up router configuration and os ?
Resolved! NAT and PPP DSL
I have an issue regarding how PPP with a CenturyLink DSL modem in bridge mode. I have two sites with the same essential setup and both are using overload NAT to provide internet to the LAN. My goal is to have IPSEC GRE tunnels between sites but i hav...
Hi, I'am newbie here, Actually I have 3 switches (2) 3550 and (1) 3500XL 3524. all switches are working fine and have trunk established with each other. but on 3500XL 3524 switch #sho interfaces trunk command not executes. I don't know why.I have c...
Hello, we have some bad network design in that we have two overlapping subnets: 192.168.2.160/29 and 192.168.2.0/24. However, it still works for us because of the mac address-table on our WS-C4500X. For instance, traffic arrives with a destination of...
I am using a Cisco RV042G dual-WAN router with V4.2.3.07 firmware as a gateway and firewall provided by two VDSL 80 Mbps WAN links. The router is set to load-balance mode and I have set up a number of bindings so that secure protocols such as SSH ar...
Resolved! CATALYST 3850 24XS
Hi everyone, I recently bought a catalyst switch 3850 24XS all fiber and support SFP+ modules 1/10G. Can I combine both 1G SFP cooper and 10G SFP+ fiber on the same switch? Thank you for your help. Danny
Just like CEF w/ ECMP, we used to be able to see which port is used in a port-channel, when we supply a specific source-destination IP pair.//3750pghcenturylink2#test etherchannel load-balance interface port-channel 1 ip 1.1.1.1 2.2.2.2 Would select ...
Hello, I have a router Cisco 886VA with following configuration: Cisco IOS Software, C800 Software (C800-UNIVERSALK9-M), Version 15.3(3)M6, RELEASE SOFTWARE (fc1) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2015 by Cisc...
