
Configuring Ports
Page 108
7750 SR OS Interface Configuration Guide
the ports active bandwidth will be multiplied by .5, if a value of 150% is given, the active
bandwidth will be multiplied by 1.5. This capability is independent of named pool mode. The
ports rate percentage parameters may be modified at any time.
Examples:
1. To modify (in this example, to double) the size of buffer allocated on ingrees for a port:
CLI Syntax:
B:SR7-10# configure port 1/2/1 modify-buffer-allocation-rate
ing-percentage-of-rate 200
2. To modify (in this example, to double) the size of buffer allocated on ingrees for a
port:
CLI Syntax:
B:SR7-10# configure port 1/2/1 modify-buffer-allocation-rate
egr-percentage-of-rate 200
Named Buffer Pools feature provides a way to customize the port ingress and/or egress buffer
allocation. The port buffer allocation size and Forwarding class (FC) queue association to the
buffer pool may be changed. By mapping each FC to different pools, it is possible to achieve
separation of available buffers per forwarding class.
Previous to this feature only the default buffer allocation mode was available, with the following
characteristics:
•
Each port manages a buffer according to its active bandwidth (ports with equal active
bandwidth get the same buffer size)
•
An access port has 2 default pools created: access-ingress and access-egress
•
A network port has 2 default pools created: ingress-MDA (common pool for all ingress
network ports) and network-egress
•
All queues defined for a port get buffers from the same buffer pool.
Named Buffer Pools feature offers the following new capabilities:
•
Ability to modify the port bandwidth considered for buffer allocation without changing
the active port bandwidth. (modify-buffer-allocation-rate) (ports with equal active
bandwidth can be configured to get different buffer size)
•
Configure a named pool policy which includes the customized buffer pools
•
Forwarding class queues are associated with the named pools
•
Pools can be default, MDA common pools, port specific pools.
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Страница 16: ...Getting Started Page 16 7750 SR OS Interface Configuration Guide ...
Страница 184: ...Card MDA and Port Command Reference Page 184 7750 SR OS Interface Configuration Guide ...
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Страница 429: ...Interface Configuration 7750 SR OS Interface Configuration Guide Page 429 Cells 0 0 Unknown VPI VCI Cells 0 A ALA 49 ...
Страница 437: ...Interface Configuration 7750 SR OS Interface Configuration Guide Page 437 bundle num 1 256 type ppp ...
Страница 438: ...Debug Commands Page 438 7750 SR OS Interface Configuration Guide ...
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