Nortel Networks 450 Table 3-19 describes the Rate Limiting Configuration screen fields.

Using the BayStack 450 10/100/1000 Series Switch

3-50 302401-D Rev 00

Table 3-19 describes the Rate Limiting Configuration screen fields.

Field Description

Unit Onl y appe ars if the switc h is p articipating in a stac k confi gur atio n. The f ield al lo ws

you to select the number of the unit you want to view or configure. To view or

configure another unit, type its unit number and press [Enter], or press the

spacebar on your keyboard to toggle the unit numbers.

Port Indicat es th e sw itch port numbe rs tha t corre spond to t he fie ld valu es in that row o f

the sc ree n (for exa mp le, the fi eld values in row 2 app ly to switch port 2). Note that

the values applied in the Switch or Stack row (last 2 rows) affect all standalone

switch ports or all switch ports in a stack.

Packet Type Allows you to select the packet types for rate-limiting or viewing.

Default Value Both

Range Both, Multicast, Broadcast

Limit Sets the percentage of port bandwidth allowed for forwarding the packet types

specified in the P ack et Type field. When the threshold is exceeded, any additional

packets (specified in the Packet Type field) are discarded1.

1 rate-limiting is dis abled if this field is set to None. This allows you to select and view the percentage of specific packet

types present in the network, without inadvert ently limi ting the forwarding rate.

Default Value None

Range None, 10%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, 1%

Last 5 Minutes This read-only field indicates the percentage of packets (of the type specified in

the P a ck et Type field) recei v ed by the port in the last 5 mi nutes . This fie ld prov ides

a running average of network activity and is updated every 15 seconds.

Note that this field indicates the receiving port’s view of network activity,

regardless of the rate-limiting setting.

Last Hour This read-only field indicates the percentage of packets (of the type specified in

the Packet Type field) received by the port in the last hour. This field provides a

running average of network activity and is updated every 5 minutes.

Note that this field indicates the receiving port’s view of network activity,

regardless of the rate-limiting setting.

Last 24 Hours This read-only field indicates the percentage of packets (of the type specified in

the Packet Type field) rec ei ved by the p ort in th e la st 24 hours. This field pro v id es

a running average of network activity and is updated every hour.

Note that this field indicates the receiving port’s view of network activity,

regardless of the rate-limiting setting.

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