Dell Networking S6000 Uživatelský manuál stáhnout pdf (Strana 961)

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101

OID String OID Name Description

NOTE: These OIDs only

generate if you enable the

enable optic-info-

update-interval is

enabled command.

Hardware MIB Buffer Statistics

.1.3.6.1.4.1.6027.3.16.1.1.4 fpPacketBufferTable View the modular packet buffers

details per stack unit and the

mode of allocation.

.1.3.6.1.4.1.6027.3.16.1.1.5 fpStatsPerPortTable View the forwarding plane

statistics containing the packet

buffer usage per port per stack

unit.

.1.3.6.1.4.1.6027.3.16.1.1.6 fpStatsPerCOSTable View the forwarding plane

statistics containing the packet

buffer statistics per COS per port.

Buffer Tuning

Buffer tuning allows you to modify the way your switch allocates buffers from its available memory and

helps prevent packet drops during a temporary burst of traffic.

The S-Series application-specific integrated circuit (ASICs) implement the key functions of queuing,

feature lookups, and forwarding lookups in hardware.

Forwarding processor (FP) ASICs provide Ethernet MAC functions, queueing, and buffering, as well as

store feature and forwarding tables for hardware-based lookup and forwarding decisions. 1G and 10G

interfaces use different FPs.

The following table describes the type and number of ASICs per platform.

Table 77. ASICs by Platform

Hardware FP CSF

S50N, S50V 2 0

S25V, S25P, S25N 1 0

As shown in the following example, you can tune buffers at three locations.

1. CSF — Output queues going from the CSF.

2. FP Uplink — Output queues going from the FP to the CSF IDP links.

3. Front-End Link — Output queues going from the FP to the front-end PHY.

All ports support eight queues, four for data traffic and four for control traffic. All eight queues are

tunable.

S-Series Debugging and Diagnostics

961

1 2 ... 956 957 958 959 960 961 962 963 964 965 966 ... 985 986

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