All language subtitles for 8. First Hop Redundancy Protocols - GLBP

In the section we're gonna talk about jail BP protocol Gateway log balancing protocol jail.

BP is a Cisco proprietary protocol that attempts to overcome the limitations of existing redundant rather

protocols by adding basic load balancing feature.

There are two roles in jail BP or for others and they are active virtual Gateway and active virtual

forwarders.

The first one in the active virtual gateway.

Members of the jail BP Group select it rather as active future will get way from among themselves.

Other group members with in the standby to take action when a G is in accessible active which you'll

get by a size of a virtual Michael rest for each member of jail BP Group one of the main tasks of active

virtual get made is to listen to art requests that are towards the default gateway IP address and respond

to this request with the MAC address of jailed BP group members thus active free you'll get.

Also provides load sharing between members and each Gateway is responsible for forwarding packets sent

by virtual MAC address assigned by the active virtual Gateway and this gateways are called active virtual

forwarders within the GOP group.

There can be up to four active virtual forwarders and you are the states of jail BP.

We have different states for virtual Gateway and virtual forwarders for virtual Gateway disabled means.

There is a part of the geographic configuration but the virtual IP is not configured or learned.

Initial means which you IP is configured or learned but the configuration is not yet complete.

The corresponding interface must be in operational in layer 3 and should be capable of IP routing.

The lesson means hello packets are reserved by the virtual Gateway pigments which will get wet through

us to be active or stand by stand by means gateway.

In this case is ready to be active virtual gateway.

In the case there is a problem in the active virtual Gateway active means.

This Gateway is active virtual Gateway and response to the ARP request made to the virtual IP address.

And let's take a look to the for virtual forward states state's initial means the virtual mac address

has been learned but the virtual forward configuration is not yet completed through later the interface

can work in Layer 3 and must be capable of IP routing.

Listen means the virtual forward.

In this case guess the help packets and is ready to go in the active state if the current active virtual

move forward becomes inaccessible and the active statements the device is in the active state is active.

Virtual forwarders and it's responsible to respond to packets arriving to the virtual forward mac address

and here is the configuration of the.

BP Let's take a look.

It's almost same with the we are happy and the jail BP.

As you can see that we go in the under the interface mode we assign an IP address.

Then we assign the geo BP and geo BP group number and IP of the jail BP address.

Then we can define priority and preemption as well

we have three GOP pillow balancing options.

They are weighted host dependent and their round robin let's take a look to the waiter first.

The Lord sent to rather we rise depending on the vet Molly advertised but by the rather in the state.

In the host dependent a host is granted to use the same virtual mac address.

As long as the virtual MAC address joins the GOP group and in the round robin a load balancing algorithm

which each virtual forward response to incoming ARP requests for every actual IP address.

And please keep in mind that this is the default algorithm

and here is the authentication of GBP GBP.

Also supports the MDA five and you can use GBP GBP group member authentication and the five and key

string.

And this is the string that we're gonna use for authentication and you can also make the jail BP object

talking too.

And here is the configuration how you can do it and that's the same logic between the H SRP and we are

IP.