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Resolved! IOS Upgrade on a 3750G stack of switches

Hello,I would like to upgrade the IOS on a stack of 4 3750G's that I have. Is this upgrade only on the primary switch in the stack, or do I need to do all of them. They are connected via stacking cables. Are there any gotcha's I should look out fo...

gene.uhl by • Level 1
  • 866 Views
  • 6 replies
  • 0 Helpful votes

bandwidth & data size relation

Hi,This query is to understand the relation between bandwidth throughput & data size.Assuming we have a 2Mbps WAN(MPLS, serial,metroe)link.No restriction is placed wrt to the data size ( viz. in MB/GB) that can be transferred over this link-my unders...

suthomas1 by • Level 6
  • 501 Views
  • 1 replies
  • 0 Helpful votes

No mac address in arp but can ping

on C2950 switch, I have connected device a.b.c.d we are able to ping this device from switch but we dont have MAC address in arp table for same IP. what could be the problem.sh arpInternet a.b.c.d 7 0000.0000.0000 ARPA Vlan1Note:-Thi...

Resolved! OSPF Prefer MPLS over DMVPN

I have a MPLS network running BGP redistributing into OSPF as external type 2 routes. I am setting up a DMVPN over DSL as secondary. They come in as inter area routes so are always preferred. I even placed a higher cost on the interface connecting...

trippi by • Level 1
  • 845 Views
  • 4 replies
  • 0 Helpful votes

Resolved! Allowed vlans on trunk

Hi every body!Today while discussing trunking with my friend, i came to know a new thing.According to Cisco press book, a switch has tree reasons to prevent a particular vlan's traffic from crossing a trunk:1) manually configured to remove vlan 2) ...

sarahr202 by • Level 5
  • 676 Views
  • 7 replies
  • 0 Helpful votes

DLSW - NO IP Address - FastEthernet.

Dear All Expert,Good Morning.I would like to seek for your advice on my below concern.If I migrate below config~~~~~~~~~~~~~~~interface FastEthernet0/0 ip address 172.230.190.4 255.255.255.0 bridge-group 1~~~~~~~~~~~~~~~To Sub-interface fa0/0.1 but w...

Resolved! How to seperate STP domains

Is there a way to stop a colo customer's switch from participating in spanning-tree within our network?An example, we're a colo hosting provider. Each colo customer gets their own vlan.On our edge switch we assign the customer a vlan like so:interfac...

asaykao73 by • Level 1
  • 4143 Views
  • 18 replies
  • 0 Helpful votes

Help with improving this Router Config

I am building a small network for a 70-user business in town. They have two Cisco switches connecting to a Cisco 3800 series router with Advanced IP services IOS. The intention being to use the built-in IPS feature.Essentially here is the way its goi...

Resolved! ACLs for switches

CISCO 3750 12.2(25) SEE2Cisco 2950 12.1.(22) EA2We codevelop software with teams from other companies and they come to our site to do this. With these companies we have setup Lan to Lan tunnels. So when they come we allow them to connect to our Gues...

multiple SVI's on 2940

I didnt have any luck with searching, but when i try to configure 2 SVI's (interface vlan 1, interface vlan 2) on my 2940 the previously up and up interface goes down when i do a 'no shut' on the new one.... here's the output and config...interface V...

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