BLADEOS 6.5.2 Application Guide

Tracking In VRRP, a method to increase the priority of a virtual router and thus master designation (with preemption enabled). Tracking can be very valuable in an active/active configuration.

 

You can track the following:

 

￿ Active IP interfaces on the Web switch (increments priority by 2 for each)

 

￿ Active ports on the same VLAN (increments priority by 2 for each)

 

￿ Number of virtual routers in master mode on the switch

 

 

VIR

Virtual Interface Router. A VRRP address is an IP interface address shared between

 

two or more virtual routers.

 

 

Virtual Router

A shared address between two devices utilizing VRRP, as defined in RFC 2338. One

 

virtual router is associated with an IP interface. This is one of the IP interfaces that the

 

switch is assigned. All IP interfaces on the G8124s must be in a VLAN. If there is more

 

than one VLAN defined on the Web switch, then the VRRP broadcasts will only be

 

sent out on the VLAN of which the associated IP interface is a member.

 

 

VRID

Virtual Router Identifier. In VRRP, a numeric ID is used by each virtual router to create

 

its MAC address and identify its peer for which it is sharing this VRRP address. The

 

VRRP MAC address as defined in the RFC is 00-00-5E-00-01-<VRID>.

 

If you have a VRRP address that two switches are sharing, then the VRID number

 

needs to be identical on both switches so each virtual router on each switch knows with

 

whom to share.

 

 

VRRP

Virtual Router Redundancy Protocol. A protocol that acts very similarly to Cisco's

 

proprietary HSRP address sharing protocol. The reason for both of these protocols is so

 

devices have a next hop or default gateway that is always available. Two or more

 

devices sharing an IP interface are either advertising or listening for advertisements.

 

These advertisements are sent via a broadcast message to an address such as

 

224.0.0.18.

 

With VRRP, one switch is considered the master and the other the backup. The master

 

is always advertising via the broadcasts. The backup switch is always listening for the

 

broadcasts. Should the master stop advertising, the backup will take over ownership of

 

the VRRP IP and MAC addresses as defined by the specification. The switch

 

announces this change in ownership to the devices around it by way of a Gratuitous

 

ARP, and advertisements. If the backup switch didn't do the Gratuitous ARP the Layer

 

2 devices attached to the switch would not know that the MAC address had moved in

 

the network. For a more detailed description, refer to RFC 2338.

 

 

382 ￿ Glossary

BMD00220, October 2010

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Blade ICE G8124-E manual Two or more virtual routers, Whom to share, 224.0.0.18
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G8124-E, G8124 specifications

The Blade ICE G8124 is a cutting-edge networking solution designed for high-performance data center environments. It has emerged as a popular choice among organizations that require reliable and efficient network infrastructure to support their growing demands for bandwidth and low-latency connectivity.

One of the key features of the Blade ICE G8124 is its high port density. This networking device typically offers 24 ports of 10 Gigabit Ethernet, ensuring that businesses can connect numerous devices without requiring extensive physical space. The design is also scalable, accommodating future expansion as organizational needs grow.

Another significant aspect of the G8124 is its advanced switching capabilities. It utilizes a non-blocking architecture, enabling simultaneous data transmissions on all ports. This characteristic ensures that there is no bottleneck in the network traffic, providing the high performance needed in data-intensive applications.

The G8124 incorporates various technologies to enhance its functionalities. It supports Layer 2 and Layer 3 switching, making it versatile for different networking needs. Additionally, it features comprehensive Quality of Service (QoS) settings that prioritize critical applications, such as VoIP and video streaming, ensuring smooth operation even under heavy loads.

In terms of security, the Blade ICE G8124 provides robust measures to protect the network. It supports features such as Access Control Lists (ACLs), port security, and VLANs, allowing administrators to segment the network and restrict unauthorized access. These security capabilities are vital in today’s landscape, where cyber threats are increasingly common.

Moreover, the G8124 offers excellent management features. It includes an intuitive user interface for easy configuration and monitoring of network performance. SNMP support allows integration with network management systems, providing administrators with insights needed to optimize their operations.

Power efficiency is also a hallmark of the Blade ICE G8124. It employs energy-saving technologies that reduce operational costs, an essential factor for environmentally-conscious organizations striving to minimize their carbon footprint.

In summary, the Blade ICE G8124 stands out with its high port density, advanced switching capabilities, robust security features, and efficient management options. This networking solution is designed to meet the demands of modern data centers, providing the performance, reliability, and scalability that organizations require. With its innovative technologies, the G8124 ensures that businesses can navigate the complexities of today's networking landscape effectively.
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