hash-key (Forwarding Options)
Syntax
hash-key {
family inet {
layer-3;
layer-4;
session-id;
symmetric-hash {
complement;
}
}
family inet6 {
layer-3 {
destination-address;
incoming-interface-index;
ipv6-flow-label;
next-header;
source-address;
traffic-class;
}
layer-4 {
destination-port;
gtp-tunnel-endpoint-identifier;
source-port;
}
no-incoming-port;
session-id;
}
family mpls {
all-labels;
bottom-label-1;
bottom-label-2;
bottom-label-3;
label-1;
label-2;
label-3;
no-labels;
no-label-1-exp;
payload {
ether-pseudowire {
zero-control-word;
}
ip {
disable;
layer-3-only;
port-data {
destination-lsb;
destination-msb;
source-lsb;
source-msb;
}
}
}
}
family multiservice {
destination-mac;
label-1;
label-2;
payload {
ip {
layer-3-only;
layer-3 {
(source-ip-only | destination-ip-only);
}
layer-4;
}
}
source-mac:
}
}
Hierarchy Level
[edit forwarding-options
Description
Select which packet header data to use for per-flow load balancing.
The options are explained separately.
To modify the default hashing mechanism on Modular Port Concentrators (MPCs) and
Type 5 FPCs, you need to configure the statements at the [edit
forwarding-options enhanced-hash-key] hierarchy level. Statements at the
[edit forwarding-options hash-key] hierarchy level do not
support MPCs and Type 5 FPCs.
The following statements are not supported on T Series routers:
-
The
symmetric-hashand thesession-idstatements at the[edit forwarding-options hash-key family inet]hierarchy level and all statements at the[edit forwarding-options hash-key family multiservice]hierarchy level. -
The
label-1andlabel-2statements, and the IP configuration at the[edit forwarding-options hash-key family multiservice]hierarchy level.
The following statements are not supported on Q Series switches:
-
The
symmetric-hashand thesession-idstatements at the[edit forwarding-options hash-key family inet]hierarchy level.
On PTX platforms, family inet/inet6 layer-3 traffic-class (dscp-v4/dscp-v6) is disabled by default.
EVPN-VXLAN configuration is required for underlay ECMP to work in ACX platforms on Junos EVO.
On ACX 7000 Series of routers, the following statements are not supported:
-
label-1,label-2, andpayloadstatements at the [edit forwarding-options hash-key family multiservice] hierarchy level -
bottom-label-1,bottom-label-2,bottom-label-3,label-1,label-2,label-3,no-labels, andno-label-1-expat the [edit forwarding-options hash-key family mpls] hierarchy level -
disableandport-datastatements at the [edit forwarding-options hash-key family mpls payload ip] hierarchy level -
destination-address,incoming-interface-index,next-header,source-address,traffic-classat the [edit forwarding-options hash-key family inet6 layer-3] hierarchy level -
destination-portandsource-portat the [edit forwarding-options hash-key family inet6 layer-4] hierarchy level
Options
-
inet-IPv4 protocol family.
-
mpls-MPLS protocol family.
-
layer-3-Incorporate Layer 3 data into the hash key.
-
layer-4-Incorporate Layer 4 data into the hash key.
-
session-id-Incorporate session ID data into the hash key (SRX3000 and SRX5000 lines only). The session ID data has higher precedence than the Layer 3 or 4 information.
-
label-1-Incorporate the first MPLS label into the hash key.
-
label-2-Incorporate the second MPLS label into the hash key.
-
label-3-Incorporate the third MPLS label into the hash key.
-
no-labels-Include no MPLS labels into the hash key.
-
payload-Incorporate payload data into the hash key.
-
ip-Include the IP address of the IPv4 or IPv6 payload into the hash key.
-
layer-3–only-Include only Layer 3 IP information.
-
port-data-Include the source and destination port field information.
-
source-msb-Include the most significant byte of the source port.
-
source-lsb-Include the least significant byte of the source port.
-
destination-msb-Include the most significant byte of the destination port.
-
destination-lsb-Include the least significant byte of the destination port.
-
source-mac-Include source MAC address in hash key.
-
destination-mac-Include destination MAC address in hash key.
Required Privilege Level
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.
Release Information
Statement introduced before Junos OS Release 7.4.
family multiservice and no-label-1-exp options
introduced in Junos OS Release 8.0.
label-3 and no-labels options introduced in Junos
OS Release 8.1.
ether-pseudowire statement introduced in Junos OS Release 9.1 (M320
and T Series routers only); support extended to M120 and MX Series routers in Junos
OS Release 9.4.
ip, label-1, label-2,
layer-3-only, and payload options for the
family multiservice statement introduced in Junos OS
Release 9.4 (M120 and M320 routers only). For MX Series routers, only the
ip and payload statements apply.
layer-3, source-ip-only,
destination-ip-only, and layer-4 statements
introduced for the family multiservice statement in Junos OS
Release 9.5. (MX Series routers only).
all-labels and payload ip disable statements
introduced for the family mpls statement in Junos OS Release
12.1X48R2 PTX Series Packet Transport Routers only.
bottom-label statement introduced for the family
mpls statement in Junos OS Release 14.1 for MX Series routers with DPCs
(excluding M7i, M10i, and M120.)
zero-control-word option for the ether-pseudowire
statement introduced in Junos OS Release 16.1 for the M Series, MX Series, and PTX
Series.