Switching

Hello all, I've got to make work a VRF-lite /NAT with some vlan topology (I use GNS3 for create the network ). We have got 2 router R1 and R2 (891f replaced with 3725 images) and an etherswitch R3 (3750 replaced with a 3725 image too). 16 Pcs with th...

i currently have 4500 edge switches with Gigabit Ethernet ports and a 10 Gigabit Ethernet uplink port to a 6500 core switch which in turn connect the firewall by another Gigabit Ethernet connection and a 800 mbps internet connection , we have a depar...

Below is the config of 2xCore and 4x2960S stacking switch config. the Red colour indiciate the missing vlan and ip default gateway please advise by adding them will fix the stacking problem. as end clinets are unable to get connect to network.   ...

According to the 3750 QoS configuration guide, the output default queue sets (1 or 2) have 25% buffers in each of the 4 queues. Does this mean that whilst using the default queue configuration, there is no benefit to classifying traffic into any spec...

Hello, if I plug in an expansion module (16 Port universal GEM2) into a Cisco Nexus (5000 Series), can I configure the port type of the new slot 2 completely independent of slot 1?To sum it up:Is it possible to make this configuration:slot 1port 1-16...

act/lshut appears in 'show vlan' when I use the 'shutdown' command in vlan configuration mode. When does act/ishut appear in 'show vlan'? Command Refference says that it appears when "is shut down internally". What does mean "is shut down internally"...

I would like to confirm the security implications of VLAN 1 if I propose the following changes in a client design using Cisco SG series L3 switches. VLAN1: user traffic flows (tagged) VLAN x: management VLAN99:  native vlan  VLAN100: default vlan (a...

I am doing some research for 10Gbe for existing distribution switches back to our core switches. If anyone can chime in, very much appreciated...Cisco is not my strong point...but a work in progress! Here are the details if anyone can help validate...

Hi all, Currently experiencing a very weird problem (Which I shall raise a TAC for at some point) but was wondering if anyone could help before I do? We recently upgraded four Nexus 5548UP switches from 6.0.2 N2 to 7.0.1.N1(1a) they are two pairs bot...

What does "unique feature" mean in Cisco Feature Navigator? For example "DHCP snooping" is unique feature for IOS 12.2(58)SE2 when comparing to 15.0(2)SE6. Does that mean "DHCP snooping" is not part of 15.0(2)SE6? Platform is Catalyst 3750 and same f...

I have ISR 4331 that have only 2 ports, right now in my environment I have L3 switches and several access switches. My question is, i want to have 2 ISP for redundancy, but i am lack of ports, is there a solution if i want to plug my isp cable to ac...