Alcatel-Lucent 7750 Configuration Manual page 510

Interfaces
failure-mode
Syntax failure-mode [discard | per-link-hash]
no failure-mode
Context config>lag>link>map>profile
Description This command defines the failure mode for egress traffic of SAPs/network interfaces that use this link-map-
profile when neither primary nor secondary links of this profile are available.
Options include:
•
•
The no form of this command restores the default failure-mode value.
Default failure-mode per-link-hash
port
Syntax port port-id [port-id ... ] [priority priority] [subgroup sub-group-id]
no port port-id [port-id ... ]
Context config>lag>port
Description This command adds ports to a Link Aggregation Group (LAG).
The port configuration of the first port added to the LAG is used as a basis to compare to subsequently added
ports. If a discrepancy is found with a newly added port, that port will not be added to the LAG.
Multiple (space separated) ports can be added or removed from the LAG link assuming the maximum of
number of ports is not exceeded.
Ports that are part of a LAG must be configured with auto-negotiate limited or disabled.
The no form of this command removes ports from the LAG.
Default No ports are defined as members of a LAG.
Parameters port-id — The port ID configured or displayed in the slot/mda/port format.
Note that the maximum number of ports in a LAG depends on platform-type, H/W deployed, and SROS
S/W release. Adding a port over the maximum allowed per given router/switch is blocked. Some plat-
forms support double port scale for some port types on LAGs with lag-id in the range of 1-64 inclusive.
Values
priority priority — Port priority used by LACP. The port priority is also used to determine the primary port.
The port with the lowest priority is the primary port. In the event of a tie, the smallest port ID becomes
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discard – egress traffic for SAPs/network interfaces using this link-map-profile is discarded to
protect SAP/network interface traffic on other LAG links from impact of re-hashing the affected
SAPs/network interfaces
per-link-hash – egress traffic for SAPs/network interfaces using this link-map-profile is rehashed
on remaining, available LAG links using per-link-hash algorithm. SAP/network interface QoS
configurations dictate what traffic is discarded on any link that may become oversubscribed as
result of the re-hash.
slot/mda/port
7750 SR Interface Configuration Guide