Switching

I just recently setup Solar Winds tftp and am using the following commands below to backup my running config to tftp. They do upload to the tftp but every day as a new config is written it's in a numbered seq. (ie-3900-switch backup 1, 3900-switch ba...

When auditing a switch to determine if a vlan is being used, or needs to be present, i can do a "sh vlan brief" to see what ports are assigned to what vlan.  what I would like to see more is when a switchport is active in a vlan, how can i retrive th...

Hi,I met a strange issue on a Cisco 3750 device.A operator did some configuration on the switch, added route-maps on a policy already enable on an interface and suddenly the trafic didn't processed anymore. He restored the old configuration on the st...

I'm a bit confused as to how an etherchannel load-balances traffic across all the links, in the port-channel.  If I have a 4 port etherchannel, to an AIX host, does the traffic load balance across all 4 ports?   In reading the load-balancing document...

Dual nexus 5010 switches, Say I'm bringing up a new LACP port for a server, this is what I'd do (on both switches)interface   port-channel135description LouPrBdw025vpc 135switchport access vlan 14interface   Ethernet105/1/7description LouPrBdw025swit...

Hi allI can configure router to allow external access to internal server by static NAT. Are there any way to configure without static NAT, and we can use ACL to prevent them from some services?Thanks for all your adviseHere is the example configurati...

Does anyone have an idea why this is happening. I am doing a packet capture and am seeing a totally different conversation of 2 hosts on the same vlan. I checked the arp table and the ip address  and mac address are in the arp table. I am in a small ...

We currently have 3 VLANsVlan1 - All servers, network devices and a few special cases of PC'sVlan2 - Building BVlan3 - Building AAre server room is in building b with our virtual and storage solution but we moved our archiving storage solution to bui...

Hi,I'm no expert in switching so I'll try to be as clear as possible.I have a Catalyst 3560 switch (IOS 12.2) which is already connected to an Alcatel switch through a trunk (802.1q). This trunk carries 2 VLANs: 10 and 20.I have to add a new VLAN (id...

We have a pair of 6509 w/SUP720-3BXL switches running HSRP and are connected via trunk using the sup 1G interfaces.  We did not create a channel-group, just direct connected.  We're now starting to realize this interface is not enough bandwidth and w...

Dear friendsCan someone explains how routers bind subnet mask to routing updates received from other routers when they themselves have some interface of that class itself and what are the different cases and treatment.Like1. when routers dont have en...