Dell S6000-ON, Configuration Manual

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Example of Configuring an Interface to Honor dot1p Priorities on Ingress Traffic
Dell#configure terminal
Dell(conf)#interface tengigabitethernet 1/1/1
Dell(conf-if-te-1/1/1)#service-class dynamic dot1p
Dell(conf-if-te-1/1/1)#end
Priority-Tagged Frames on the Default VLAN
Priority-tagged frames are 802.1Q tagged frames with VLAN ID 0. For VLAN classification, these packets
are treated as untagged. However, the dot1p value is still honored when you configure
service-class
dynamic dot1p
or
trust dot1p
.
When priority-tagged frames ingress an untagged port or hybrid port, the frames are classified to the
default VLAN of the port and to a queue according to their dot1p priority if you configure
service-
class dynamic dotp
or
trust dot1p
. When priority-tagged frames ingress a tagged port, the frames
are dropped because, for a tagged port, the default VLAN is 0.
Dell Networking OS Behavior : Hybrid ports can receive untagged, tagged, and priority tagged frames.
The rate metering calculation might be inaccurate for untagged ports because an internal assumption is
made that all frames are treated as tagged. Internally, the ASIC adds a 4-bytes tag to received untagged
frames. Though these 4-bytes are not part of the untagged frame received on the wire, they are included
in the rate metering calculation resulting in metering inaccuracy.
Configuring Port-Based Rate Policing
If the interface is a member of a VLAN, you may specify the VLAN for which ingress packets are policed.
• Rate policing ingress traffic on an interface.
INTERFACE mode
rate police
Example of the
rate police
Command
The following example shows configuring rate policing.
Dell#configure terminal
Dell(conf)#interface tengigabitethernet 1/1/1
Dell(conf-if-te-1/1/1)#rate police 100 40 peak 150 50
Dell(conf-if-te-1/1/1)#end
Dell#show interfaces tengigabitEthernet 1/2 rate police
Rate police 300 (50) peak 800 (50)
Traffic Monitor 0: normal 300 (50) peak 800 (50)
Out of profile yellow 23386960 red 320605113
Traffic Monitor 1: normal NA peak NA
Out of profile yellow 0 red 0
Traffic Monitor 2: normal NA peak NA
Out of profile yellow 0 red 0
Traffic Monitor 3: normal NA peak NA
Out of profile yellow 0 red 0
Traffic Monitor 4: normal NA peak NA
Out of profile yellow 0 red 0
Dell#show interfaces tengigabitEthernet 1/2/1 rate police
Rate police 300 (50) peak 800 (50)
Traffic Monitor 0: normal 300 (50) peak 800 (50)
Out of profile yellow 23386960 red 320605113
Traffic Monitor 1: normal NA peak NA
Out of profile yellow 0 red 0
708
Quality of Service (QoS)