BLADEOS 6.5.2 Application Guide

Configurable Trunk Hash Algorithm

Traffic in a trunk group is statistically distributed among member ports using a hash process where various address and attribute bits from each transmitted frame are recombined to specify the particular trunk port the frame will use.

The switch can be configured to use a variety of hashing options. To achieve the most even traffic distribution, select options that exhibit a wide range of values for your particular network. Avoid hashing on information that is not usually present in the expected traffic, or which does not vary.

The G8124 supports the following hashing options:

￿Layer 2 source MAC address

RS G8124(config)# portchannel hash source-mac-address

￿Layer 2 destination MAC address

RS G8124(config)# portchannel hash destination-mac-address

￿Layer 2 source and destination MAC address

RS G8124(config)# portchannel hash source-destination-mac

￿Layer 3 IPv4/IPv6 source IP address

RS G8124(config)# portchannel hash source-ip-address

￿Layer 3 IPv4/IPv6 destination IP address

RS G8124(config)# portchannel hash destination-ip-address

￿Layer 3 source and destination IPv4/IPv6 address (the default)

RS G8124(config)# portchannel hash source-destination-ip

Note – Layer 3 hashing options (source IP address and destination IP address) enabled either for port trunk hashing or for ECMP route hashing (ip route ecmphash) apply to both the trunking and ECMP features (the enabled settings are cumulative). If trunk hashing behavior is not as expected, disable any unwanted options set in ECMP route hashing. Likewise, if ECMP route hashing behavior is not as expected, disable any unwanted options enabled in trunk hashing.

106 ￿ Chapter 7: Ports and Trunking

BMD00220, October 2010

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Blade ICE G8124 Configurable Trunk Hash Algorithm, Layer 2 destination MAC address, Layer 3 IPv4/IPv6 source IP address

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.