GLBP is a Cisco proprietary protocol that attempts to overcome the limitations of existing This section will first go over the configuration process steps and commands that are used to perform a basic GLBP configuration. An example. In the previous lesson we showed you a load balancing mechanism and I’ll still argue that that’s the best way to go. Gateway Load Balancing Protocol – GLBP is .
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One virtual gateway within a GLBP group is elected as the active virtual gateway, and is responsible for the operation of the protocol.
The virtual MAC address is known but virtual forwarder configuration is not complete. I’ll tell confivuration the reality though and the reality is this. The line-protocol parameter will track the protocol state of the configured interface. This site is in not affiliated with Cisco Systems, Inc.
The following two tabs change content below. Indicates that the gateway is next in line to be the active virtual gateway AVG.
R1 examplf glbp 10 timers 5 Because what can happen is traffic can go up to the distribution layer and then get forwarded across the distribution layer link to the other router. Gateway Load Balancing Protocol. The valid values for the priority are from 1 through The difference here is that there will be load balancing occurring between the two routers.
GLBP & GLBP Basic Configuration
The next two trace would probably go through R3 again, because R3 has twice the weight of each R1 and R2. R1 config-if glbp 10 ip This is to ensure that R1 has the highest priority among the group members. HSRP is going to give us what we need, and that’s predictability. R2 config-if exsmple shutdown. Router-A show glbp brief.
Enter the key string that will be used to authenticate with neighboring configuratjon. The main difference is that GLBP allows for load balancing between the two routers rather than using just one and leaving the other unused until needed.
Configures the hello timer to be set to 5 seconds and the hold timer to be 18 seconds. The default setting is This method is the default.
Because of this, a number of different technologies have been developed exampke provide redundancy at every point within the network. GLBP is a workable technology.
GLBP Configuration on Cisco
The default load balancing method for GLBP is round-robin. An AVF with bigger weight value will get more traffic redirected to it. Back to home page. Assuming the basic interface IP and routing has been pre-configured, the command to enable GLBP in each router is as follows.
Indicates that this gateway is the AVF, and that it is responsible for forwarding packets sent to the virtual forwarder MAC address. Enable GLBP authentication using the configured key chain and group number of 1.
Create a key chain using the name testchain and enter into key chain configuration mode.
Cisco GLBP Configuration with Example | ICND2
R1 config-if glbp 1 load-balancing weighted. An interface must be up and configured to route IP, and an interface IP address must be configured. R1 config-if no shutdown. Return to Beginning Previous Section. First Hop Redundancy Protocol, that’s a gateway protocol.
GLBP (Gateway Load Balancing Protocol) |
Indicates that the virtual MAC address has not been assigned or learned. Weighted algorithm distribute traffic to each AVF based on the weight value assigned to them.
Above, you can see the active and standby routers as well as the virtual MAC addresses assigned to each So the configuration commands are standby, the show commands are standby and that’s really annoying.
Figure 1 GLBP example topology. The ip routing parameter will track the IP routing capability of an interface is it configured with an IP address and operational? How does this happen? R2 copy running-config startup-config. R2 config-if ip address