I am currently working on a remote office with two leased line connections terminated on two different routers toward our headquarters.
Router_A, with 512k leased line connection attached to it is directly connected to our head office. Another router named Router_B, with 256k leased line connection attached is connected to another satellite office and this satellite office has 512k leased line connection towards our headquarters.
My questions are:
1. How do I configure/enable network redundancy/resiliency for my network such that if the leased line attached to Router_A goes down, all data will be routed automatically to Router_B via our satellite office and then headquarters ? And on the other hand, if the leased line connection attached to Router_B goes down, data will also be automatically routed to Router_A ? In this case, I will have a minimum downtime and more productivity for my company.
By the way, I have a static route from Router_A pointing directly to the serial interface of my headquarter's router and the same with Router_B.
2. Would it be possible if I have a Cisco switch that if this switch fails ... it will automatically switch to another switch ?
try getting rid of the static routes and enabling any dynamic routing protocol, I would pick ospf or eigrp. Either one of these will learn both routes to headquarters and take the shortest one, upon that route failing, the next route will pick up. Since the links are point to point, cutover should be almost instant.
If this is the only two sites you have, just setting the static routes up pointing to the interfaces, as it sounds like you have, should work with a minimum of downtime, as long as the interface actually goes down when the link fails (which isn't always the case). Running a dynamic protocol would give you layer 3 hello's, which would discover a link failure even if the interface stays up. So that's at least one reason to consider dynamic routing over these interfaces. Network manageability, if the network is large, is another one--large numbers of manually configured static routes are hard to manage.
Question We run asr9001 with XR 6.1.3, and we have a very long delay to
login w/ SSH 1 or 2 to the device compare to IOS device. After
investigation, the there is 1s delay between the client KEXDH_INIT and
the server (XR) KEXDH_REPLY. After debug ssh serv...
Introduction The purpose of this document is to demonstrate the Open
Shortest Path First (OSPF) behavior when the V-bit (Virtual-link bit) is
present in a non-backbone area. The V-bit is signaled in Type-1 LSA only
if the router is the endpoint of one or ...
Hi, I am seeing quite a few issues with patch install and wanted to
share my experience and workaround to this. Login to admin via CLI, then
access root with the “shell” command Issue “df –h” and you’ll probably
see the following directory full or nearly ...