FUJITSU PSWITCH User’s Guide
56 December/2018
packet is discarded.
Port Security sticky mode can converted dynamically locked addresses to statically
locked addresses. If the limit of statically locked MAC addresses is less than the
number of dynamically locked MAC addresses, then the addresses that are
converted are done so on a first arrival basis (that is, the first 'X' addresses are
converted, where 'X' is the number of remaining statically locked MAC addresses).
3.1.2.5. LAG (Link Aggregation) or Port Channel
Trunking, which is also called Port Channels or Link Aggregation, is initiated and
maintained by the periodic exchanges of Link Aggregation Control PDUs (LACPDUs).
When LACP is enabled for a physical interface, LACPDUs must not be dropped for
any reason. Conversely, when LACP is disabled for the physical interface LACPDUs
must be dropped.
From a system perspective, a LAG is treated as a physical port. A LAG and a physical
port use the same configuration parameters for administrative enable/disable, port
priority, and path cost.
A LAG failure of one or more of the links does not stop traffic in any manner. Upon
failure, the flows mapped to a link are dynamically reassigned to the remaining
links of the LAG. Similarly when links are added to a LAG, the conversations may
need to be shifted to a new link member. Before any relocation of a conversation,
the system ensures reordered frames do not exist.
The LAG component supports a feature whereby a LAG acquires ports upon create.
The ports are placed in the discarding state in hardware and transmit only LACPDUs.
Acquired ports are not available for configuration.
The platform can support up to 48 ports in a LAG.
3.1.2.5.1. Static LAGs
A static LAG is no different from a dynamically configured LAG. All the requirements
for the member ports hold true. [Member ports must be physical, same speed, and
so on] The only difference is this LAG has an additional parameter 'static' which
makes this LAG not require a partner system to be able to aggregate it's member
ports.
A static LAG does not transmit or process received LACPDUs, that is, the member
ports do not transmit LACPDUs and all the LACPDUs it may receive are dropped. A
dropped counter is maintained to count the number of such PDUs.
To Next Page
Loading...
Need help?
General
