Opened 6 years ago

Last modified 6 years ago

#14 new enhancement

Taeho's Comments

Reported by: mohamed.boucadair@… Owned by: draft-ietf-sfc-control-plane@…
Priority: minor Milestone:
Component: control-plane Version:
Severity: - Keywords:
Cc:

Description

IMHO, for SFC resiliency, the aspect of high availability of SF/SFF should be emphasized, including failover of SF.
Some attributes of SFF(e.g. high capacity) and SF(mandatory/optional) could be considered
for dynamic path selection and connectivity of SFs.
(http://datatracker.ietf.org/doc/draft-kang-sfc-dynamic-path-selection/)
Dynamic path selection of multiple instances of SF can be used for policy-based load balancing as well.

Draft-ww-sfc-control-plane-06 treats resiliency and load balancing,
and I think these parts could be further extended with support of WG.

Best Regards,
Taeho

Change History (1)

comment:1 Changed 6 years ago by mohamed.boucadair@…

The following changes are made in -01:

OLD:

SFP fail-over: re-construct a SFP with replacing the failed SF

instance with another instance of the same SF.

SFP fail-over: re-construct a SFP with replacing the failed SF

instance with another instance of the same SF or withdraw the
failed SF from being invoked. Note that withdrawing an SF may be
envisaged if the resulting connectivity service is not broken
(that is, packets bound to the updated SFP can be successfully
delivered to their ultimate destinations). Rerouting the traffic
to another SF instance or withdrawing the failed SF is deployment-
specific.

OLD:

SF/SFC Load balancing: re-construct SFPs to distribute the workload

among various SF instances.

NEW:

SF/SFP Load balancing: re-construct SFPs to distribute the workload

among various SF instances. Particularly, load distribution
policies can be taken into account by the Control Element to re-
compute an SFP or be provisioned as attributes to SFPs that will
be installed using the control interfaces.

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