
C
HAPTER
39
| Quality of Service Commands
– 1218 –
violate-action
- Action to take when rate exceeds the PIR. (There
are not enough tokens in bucket BP to service the packet, the
packet is set red.)
drop
- Drops packet as required by exceed-action or violate-action.
transmit
- Transmits without taking any action.
new-dscp
- Differentiated Service Code Point (DSCP) value.
(Range: 0-63)
D
EFAULT
S
ETTING
None
C
OMMAND
M
ODE
Policy Map Class Configuration
C
OMMAND
U
SAGE
◆
You can configure up to 16 policers (i.e., class maps) for ingress ports.
◆
The
committed-rate
and
peak-rate
cannot exceed the configured
interface speed, and the
committed-burst
and
peak-burst
cannot
exceed 16 Mbytes.
◆
The trTCM as defined in RFC 2698 meters a traffic stream and
processes its packets based on two rates – Committed Information
Rate (CIR) and Peak Information Rate (PIR), and their associated burst
sizes - Committed Burst Size (BC) and Peak Burst Size (BP).
◆
The PHB label is composed of five bits, three bits for per-hop behavior,
and two bits for the color scheme used to control queue congestion. A
packet is marked red if it exceeds the PIR. Otherwise it is marked either
yellow or green depending on whether it exceeds or doesn't exceed the
CIR.
The trTCM is useful for ingress policing of a service, where a peak rate
needs to be enforced separately from a committed rate.
◆
The meter operates in one of two modes. In the color-blind mode, the
meter assumes that the packet stream is uncolored. In color-aware
mode the meter assumes that some preceding entity has pre-colored
the incoming packet stream so that each packet is either green, yellow,
or red. The marker (re)colors an IP packet according to the results of
the meter. The color is coded in the DS field [RFC 2474] of the packet.
◆
The behavior of the meter is specified in terms of its mode and two
token buckets, P and C, which are based on the rates PIR and CIR,
respectively. The maximum size of the token bucket P is BP and the
maximum size of the token bucket C is BC.
◆
The token buckets P and C are initially (at time 0) full, that is, the token
count Tp(0) = BP and the token count Tc(0) = BC. Thereafter, the token
count Tp is incremented by one PIR times per second up to BP and the
token count Tc is incremented by one CIR times per second up to BC.
Содержание ECS4110-28T
Страница 1: ...Management Guide www edge core com ECS4110 28T 28P 52T 52P 28 52 Port Gigabit Ethernet Layer 2 Switch...
Страница 2: ......
Страница 4: ......
Страница 63: ...FIGURES 63 Figure 428 Configuring VLAN Translation 1177...
Страница 64: ...FIGURES 64...
Страница 72: ...TABLES 72...
Страница 74: ...SECTION I Getting Started 74...
Страница 102: ...SECTION II Web Configuration 102 General IP Routing on page 679...
Страница 154: ...CHAPTER 4 Basic Management Tasks Resetting the System 154...
Страница 198: ...CHAPTER 5 Interface Configuration VLAN Trunking 198 Figure 65 Configuring VLAN Trunking...
Страница 272: ...CHAPTER 9 Congestion Control Automatic Traffic Control 272...
Страница 286: ...CHAPTER 10 Class of Service Layer 3 4 Priority Settings 286...
Страница 420: ...CHAPTER 13 Security Measures DHCP Snooping 420...
Страница 566: ...CHAPTER 14 Basic Administration Protocols OAM Configuration 566...
Страница 638: ...CHAPTER 15 Multicast Filtering Multicast VLAN Registration for IPv6 638...
Страница 662: ...CHAPTER 16 IP Configuration Setting the Switch s IP Address IP Version 6 662...
Страница 678: ...CHAPTER 17 IP Services Configuring the PPPoE Intermediate Agent 678...
Страница 792: ...CHAPTER 21 System Management Commands Switch Clustering 792...
Страница 822: ...CHAPTER 23 Remote Monitoring Commands 822...
Страница 888: ...CHAPTER 24 Authentication Commands PPPoE Intermediate Agent 888...
Страница 968: ...CHAPTER 25 General Security Measures Port based Traffic Segmentation 968...
Страница 994: ...CHAPTER 26 Access Control Lists ACL Information 994...
Страница 1034: ...CHAPTER 28 Link Aggregation Commands Trunk Status Display Commands 1034...
Страница 1044: ...CHAPTER 29 Power over Ethernet Commands 1044...
Страница 1084: ...CHAPTER 33 UniDirectional Link Detection Commands 1084...
Страница 1090: ...CHAPTER 34 Address Table Commands 1090...
Страница 1194: ...CHAPTER 37 VLAN Commands Configuring Voice VLANs 1194...
Страница 1388: ...CHAPTER 42 CFM Commands Delay Measure Operations 1388...
Страница 1410: ...CHAPTER 44 Domain Name Service Commands 1410...
Страница 1420: ...CHAPTER 45 DHCP Commands DHCP Relay 1420...
Страница 1472: ...CHAPTER 46 IP Routing Commands IPv4 Commands 1472...
Страница 1474: ...SECTION IV Appendices 1474...
Страница 1502: ...COMMAND LIST 1502...
Страница 1513: ......
Страница 1514: ...ECS4110 28T ECS4110 28P ECS4110 52T ECS4110 52P E072014 ST R02 150200000929A...