Supported Platforms
multicast-loadbalance
Syntax
Hierarchy Level
Release Information
Statement introduced in Junos OS Release 12.2 for EX Series switches.
Description
(EX8200 switches only) Enable multicast load balancing to evenly distribute the Layer 3 routed multicast traffic on aggregated 10-gigabit Ethernet interfaces. When multicast load balancing is enabled on the EX8200 switch, it takes effect on aggregated 10-gigabit Ethernet interfaces that are currently configured as well as those that are configured later.
Crc-sgip mode is the default. If the default mode is implemented and the Layer 3 routed multicast traffic on the aggregated interfaces is not evenly distributed, you can try the other hashing algorithms. Use the algorithm that best balances your Layer 3 routed multicast traffic.
 | Note: If you change the hashing algorithm when multicast load balancing is disabled, the new algorithm takes effect after you reenable multicast load balancing. |
Default
Multicast load balancing is enabled.
Options
hash-mode mode—Specify one of these hashing algorithms:
balanced | — | Use a round-robin method to determine the aggregated Ethernet links with the least amount of traffic. |
crc-gip | — | Use multicast packets’ group IP address as a key to a CRC algorithm to get the hash index. The hashing algorithm used is CRC. |
crc-sgip | — | Use multicast packets’ source IP address and group IP address for hashing. The hashing algorithm used is CRC. |
crc-sip | — | Use multicast packets’ source IP address for hashing. The hashing algorithm used is CRC. |
simple-gip | — | Use multicast packets’ group IP address for hashing. The hashing algorithm used is XOR. |
simple-sgip | — | Use multicast packets’ GIP bits to calculate the hash index. The hashing algorithm used is XOR. |
simple-sip | — | Use multicast packets’ source IP address bits for hashing. The hashing algorithm used is XOR. |
The remaining statement is explained separately.
Required Privilege Level
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.
