In our network setup, we have couple of routers, firewalls and switches(Please find the attachment) connected. Switches 3560G are configured in Active-Passive mode using HSRP. On one end, we have connected these switches to Data Centre(Couple of servers), on the another end, we have ASA firewalls configured for Active-Active mode using HSRP and these firewalls are connected to Switch 2960S and from the switch they are connected to Routers 2911 and 1941. From routers, we have point-to-multipoint connection using MPLS. On the same switch 2960S, we have also ISP connection.
We are looking for the following solutions:
1) As you can see, 2960S switch is having "Single point of failure". I need a hardware redunduncy. I want to purchase another switch to achieve this redanduncy, but want to know the connectivity between these switches and ASA firewalls and what protocols to be used to achieve this.
2) Also, I want to conver the Active-Passive switches to Active-Active switches.
But I have a little doubt...In the network topology, I have a ISP and MPLS connections to this switch. If I connect both MPLS line and ISP line to the master switch(stacking) and unfortunately master switch goes completely down(no power). As there is no power in master switch and the ports are connected to master, I want to know that the ISP and MPLS would be up through slave switch, since there is no power in master.
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Your diagram also show two links coming into the 2960 and two links leaving it. When you stack the switches, you move one ingress and egress link to the second stack member. If either stack member fails, you lose half your possible bandwidth but you don't have complete connectivity failure.
1. Instead of a 2960S between the router and the ASA, I'd invest in 3750X.
2. I'd also invest in 3750X to replace the 3560G. Aside from stacking the 3750X together to form one logical switch, you can get rid of your HSRP. This will also allow you to better manage this section of your network to the DC.
3. The 2911 and 1941 router does not have HSRP running between them.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.