Brocade Multi-Service IronWare Switching Configuration Guide (Supporting R05.6.00) - Manual (Page 845)

Multi-Service IronWare Switching Configuration Guide 815
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Configuring IP load sharing
19
Slot 2
Syntax: show load-balance symmetric-options ethernet | ip | ipv6 | l4_ip | l4_ipv6 |
inner_ethernet | inner_ip | inner_ipv6 | packet
Table 97 describes the output parameters of the show load-balance symmetric-options command.
How IP load sharing works
On the Brocade device, IP load sharing is done by the hardware. If there is more than one path to a
given destination, a hash is calculated based on the source MAC address, destination MAC
address, source IP address, destination IP address, VLAN-ID (if applicable), IPv4 protocol number,
IPv6 next header and TCP/UDP source port and destination port if the packet is also a TCP/UDP
packet. This hash is used to select one of the paths.
Changing the maximum number of load sharing paths
By default, IP load sharing allows IP traffic to be balanced across up to four equal path. You can
change the maximum number of paths that the Brocade device supports to a value between 2 and
32.
NOTE
The maximum number of paths supported by the BR-MLX-10Gx24-DM module is 16.
For optimal results, set the maximum number of paths to a value equal to or greater than the
maximum number of equal-cost paths that your network typically contains. For example, if the
Brocade device has six next-hop routers, set the maximum paths value to six.
TABLE 97 Output parameters of the show load-balance symmetric-options command
Field Description
Slot Shows the slot number of the interface on which the symmetric load balancing option
is enabled.
Symmetric options Shows whether or not the symmetric option is enabled on the following interfaces:
•
Symmetric Ethernet options - Shows if the symmetric option is enabled on the
Ethernet interface.
•
Symmetric IP options - Shows if the symmetric option is enabled on the IP
interface.
•
Symmetric IPv6 options - Shows if the symmetric option is enabled on the IPv6
interface.
•
Symmetric Layer 4 IP options - Shows if the symmetric option is enabled on the
Layer 4 IP interface.
•
Symmetric Layer 4 IPv6 options - Shows if the symmetric option is enabled on the
Layer 4 IPv6 interface.
•
Symmetric INNER Ethernet options - Shows if the symmetric option is enabled on
the inner Ethernet interface.
•
Symmetric INNER IP options - Shows if the symmetric option is enabled on the
inner IP interface.
•
Symmetric INNER IPv6 options - Shows if the symmetric option is enabled on the
inner IPv6 interface.
•
Symmetric packet options - Shows if the symmetric option is enabled on all the
interfaces.