Switching

HiI have a strange problem:We have a VSS with 2 6509E and 5 4506E with SUP6-E. The 4506 are connected with two TenGig links (one to each 6509) each. The two ports build an ether channel.Everything works fine but one of the TenGig links is not comming...

Hi all,on my 6509 i have configured Vlans, on Vlan 70 i have my DNS Server (192.168.70.11), DHCP ext. and on other separate Vlans i have my hosts.I need to configure an extented ACL so as to permit host (server 2003, ex.192.168.80.2) on Vlan 80 to ac...

Hi!I have a routing-related problem on my Cisco ASA 5540.I have configured several interfaces on the appliance. Two of them face to the local subnets.> interface GigabitEthernet0/0.252 > description -= Catalyst 6000 =- > vlan 252     > nameif INSIDE...

Hello everyone, We are planning to configure redundancy between two 6500 with FWSM and 3560. Currently one 6500 and 3560 is connected through layer 3 interface and routing by EIGRP. We are willing to add second 6500 for redundancy. For that we have t...

Hi,We are deploying NAT in a 2801 router and when we execute the comand: sh ip nat statistics, we see missed paquets.We do not have high cpu proccess.We have high level of free memory.We have defined pool for the nat procedd but neither one is full.W...

We have a 4510r-E core, been up and running for 2 years. We also utilized about a dozen linksys and cisco 5 port workgroup hubs/switches. Saturday night every one of the hubs/switches stopped working and would not allow traffic through them. I've see...

Hi,I have 2 SPF modules in place in each of the above 2 switches that are located in different buildings. I can have only one link UP. Are there license requirements on this?The configurations are as follows:The 2 interfaces in 2960G-----------------...

Hi,I have a Cisco ESW520 8 port that is connected to a cisco catalyst 3560G.Our switch management is on VLAN 100 and vlan 1 is the data network.I have trunked the two switchs and on the interface of the 3560G is as follows:interface GigabitEthernet0/...

Over the years I've heard and read about MTU sizes and packet fragmentation, but as far as I can remember, in all the networks I've worked on, we've always left the configured MTU size as the default (1500), and applications seem to do just fine with...

Do you need to Vlan and segregate the voice traffic and apply QoS to ports on Cisco Catalyst Express 500 Series Switches?  Just discovered that these devices has no CLI.  Presently the site has 100+ IP phones on a flat network with no issues.  Any ad...

hi guys,Ive been stuck on this problem at work for couple of days now..and its so basic...that its almost embarrassing for me to ask this question.Anyways...i will go ahead and ask much smarter people out there I have this new device(HSM- 9000) devic...

I have 5 member 3750 switches in a mixed statck of 2 x 3750x and 3 x C3750G-48TS. All five run the same IOS 12.2(53)SE2.I noticed this morning that the master was no longer part of the statck and master switch function had transfered to the 2nd switc...

All,Anybody would know if possible to config vPC between the two 2148s and a Cat 3130? Basicaly, the 3130 will have connection to each of the 2148 and I would like to config the vPC between the two links.My question is; is it possible to have vPC bet...