Inet6 (Enhanced-Hash-Key) - Juniper EX2200 Hardware Manual

inet6 (enhanced-hash-key)

Syntax
Hierarchy Level
Release Information
Description
Default
Options
Copyright © 2015, Juniper Networks, Inc.
inet6 {
no-ipv6-destination-address;
no-ipv6-source-address;
no-l4-destination-port;
no-l4-source-port;
no-next-header;
vlan-id;
}
[edit forwarding-options enhanced-hash-key]
Statement introduced in Junos OS Release 13.2X51-D15 for EX Series switches.
Statement introduced in Junos OS Release 13.2X51-D20 for QFX Series devices.
Select the payload fields in an IPv6 packet used by the hashing algorithm to make hashing
decisions.
When IPv6 traffic enters a LAG and the hash mode is set to Layer 2 payload, the hashing
algorithm checks the fields configured using this statement and uses the information in
the fields to decide how to place traffic onto the LAG bundle's member links or to forward
traffic to the next hop device when ECMP is enabled.
The hashing algorithm, when used to hash LAG traffic, always tries to manage bandwidth
by evenly load-balancing all incoming traffic across the member links in the bundle.
The hashing algorithm only inspects the IPv6 fields in the payload to make hashing
decisions when the hash mode is set to Layer 2 payload. The hash mode is set to Layer
2 payload by default. You can set the hash mode to Layer 2 payload using the
forwarding-options enhanced-hash-key hash-mode layer2-payload
The data in the following fields are used by the hashing algorithm to make hashing
decisions for IPv6 traffic:
IP destination address
IP source address
Layer 4 destination port
Layer 4 source port
Next header
no-ipv6-destination-address
algorithm.
no-ipv6-source-address —Exclude the IPv6 source address field from the hashing algorithm.
—Exclude the Layer 4 destination port field from the hashing
no-l4-destination-port
algorithm.
—Exclude the IPv6 destination address field from the hashing
Chapter 3: Configuration Statements
set
statement.
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