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My company has ~400 users. I use a 2801 router to route traffic between vlans ('cause we just have some layer 2 catalysts and this router) and nat for internet access. Our network model looks like this: IPS -> Router -> users. On subinterfaces, I've ...

Hello We have a class B network which is subnetted with a class C mask. Our server VLAN is now running out of usable IP addresses. We'd usually add a secondary IP address to the VLAN interface but I've heard that this is “bad practice” . I've had...

Greetings!!If I have a /30 subnet, say x.x.x.0/30, I will use .1 & .2 and cannot use .0 since it is subnet and .3 cannot be used since it is a broadcast ip address.But, instead, if I further subnet the /30 to /32, I will get four ip addresses, .1, .2...

rkunta by Level 1
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  • 8 replies
  • 0 Helpful votes

I have a Catalyst 6513 switch. It has 2 6000 watt power supplies installed. I am not sure why, but each one only shows up as being 3780 watts.I was planning on running these in redundent mode. Right now they are running combined because I need a tota...

j98me2 by Level 1
  • 581 Views
  • 2 replies
  • 0 Helpful votes

Hi I have 150 Servers in my ServerFarm .Is that a good idea to have 2 3750 stack , Each stack having 4x48 port 3750 having the stackwise connection .from servers connection goes to both the stack Both stack connects to 6513 core .Pls help me on this...

Hello all,I have the next scenario:1. Checkpoint firewall R60 on win 2000 server2. Layer 2 switch with vlan management.My question:I want to create several vlans on this switch that every vlan will be seperate network, and won't see each other untill...

I'm running dual Sup720's and testing NSF/SSO. When forcing a software failover I lose 1 ping packet, when removing the active sup I lose anywhere from 2-5 packets. Is 2-5 packets the norm for hardware failure (sup removal)? Thanks!

Hi,This is my topology:R2811----Cat3750----CE500----(IP Phone+PC).Call between IP Phone and IP Phone is very well but from IP Phone and PSTN through R2811 is intermittent.When i ping from router 2811 to ip phones, i get 5 success and 1 fail.All port ...

helawamry by Level 1
  • 476 Views
  • 2 replies
  • 0 Helpful votes

We are attempting to use copper to fiber Black Box transceivers to connect to a remote site (3560). The transceiver can be powered by PoE or an AC adapter. We are attempting to use both, with the AC as a back-up. Is this the best option? or is PoE...

jimmyc_2 by Level 1
  • 571 Views
  • 6 replies
  • 0 Helpful votes

Hi,I have a core 6509 with dual sup720's and dual power supplies. Management is concerned that this is a single point of failure. What are the chances that this will totally fail? Is there a big risk here?thanks

Cat6509- lots of output drops on a group of 1GB interface (all on same module).Utilization is low and no other errors are logged on the ports.Any thoughts on this are appreciated.

jrabener by Level 1
  • 1272 Views
  • 2 replies
  • 0 Helpful votes

Hi. I have two public ip adds used by two ports S0 and S1. My primary isp is linked to S0 and i have a backup isp linked to S1. Currently, i have a default route pointing to S0. Is there a way to enable S1 also where should the bandwidth for s0 re...

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