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1、pos機配置教學
pos機配置教學
一般的QoS配置不外乎四個步驟：
1,設(shè)置ACL匹配應(yīng)用流量;
2,設(shè)置class-map匹配相應(yīng)ACL或者相應(yīng)端口等等，不過一般式匹配ACL;
3,設(shè)置policy-map匹配class-map,然后定一規(guī)則動作;
4,將policy-map綁定到相應(yīng)的接口上。下面使用一個比較典型的案例來說明QoS的配置步驟：需求：路徑帶寬為622Mbps,四種應(yīng)用流量，需要保證如下幾點：
流量1,某一具體應(yīng)用流量，永遠優(yōu)先傳輸，最小帶寬保證為365Mbps;
流量2,某一具體應(yīng)用流量，次優(yōu)先傳輸，最小帶寬保證為200Mbps;
流量3,此為業(yè)務(wù)流量，保證在1和2后的其余帶寬下傳輸即可;
流量4,某一具體應(yīng)用流量，保證在123流量外的帶寬下傳輸即可。具體配置如下：
第一步，定義ACL匹配應(yīng)用流量：
ip access-list extended tra1_acl
permit tcp 1.1.1.0 0.0.0.255 1.1.2.0 0.0.0.255 eq 8818
ip access-list extended tra2_acl
permit tcp 1.1.3.0 0.0.0.255 1.1.4.0 0.0.0.255 eq 901
ip access-list extended tra4_acl
permit ip 1.1.5.0 0.0.0.255 1.1.6.0 0.0.0.255
第二步，定義class-map匹配相關(guān)ACL:
class-map match-all tra1_cmap
match access-group name tra1_acl
class-map match-all tra2_cmap
match access-group name tra2_acl
class-map match-all tra4_cmap
match access-group name tra4_acl
第三步，定義policy-map:
policy-map tra_pmap
class tra1_cmap
set precedence 5
plicy cir 365000000 bc 8500000 be 13500000 conform-action transmit exceed-action set-prec-transmit 3 violate-action set-prec-transmit 2
bandwitch 365000
class tra2_cmap
set precedence 4
policy cir 200000000 bc 10000000 be 13000000 conform-action transmit exceed-action set-prec-transmit 3 violate-action set-prec-transmit 2 bandwidth="360px",height="auto" />
class tra4_cmap
set precedence 1
class class-default
set precedence 2
第四步，綁定policy-map于相應(yīng)的接口：
int pos1/0/0
service-policy output tra_pmap
至此，配置完畢。通過命令查看policy-map的匹配情況：
switch-a#sh policy-map interface pos1/0/0
POS1/0/0 Service-policy output: tra_map Class-map: tra1_cmap (match-all)
66639423781 packets, 74849682635166 bytes
30 second offered rate 260369000 bps, drop rate 0 bps //匹配此class-map的流量速率
Match: access-group name tra1_acl
Queueing
queue limit 91250 (packets)
(queue depth/total drops/no-buffer drops) 0/0/0
(pkts queued/bytes queued) 66639405294/74849695040832
QoS Set
ip precedence 5
Packets marked 66639423781
police:
cir 365000000 bps, bc 8500000 bytes, be 13500000 bytes //注意cir、bc和be的單位
conformed 66191701966 packets, 74341131469597 bytes; action: transmit
exceeded 218369922 packets, 232627302399 bytes; action: set-prec-transmit 4
violated 229208950 packets, 275718927918 bytes; action: set-prec-transmit 3
conformed 256761000 bps, exceed 1656000 bps, violate 1939000 bps //每個action的流量速率，注意這三個值總和應(yīng)該大致等于上面的總速率;
bandwidth="360px",height="auto" />
11315788699 packets, 7283900643868 bytes
30 second offered rate 10753000 bps, drop rate 0 bps
至此，配置完畢。通過命令查看policy-map的匹配情況：
switch-a#sh policy-map interface pos1/0/0
POS1/0/0 Service-policy output: tra_map Class-map: tra1_cmap (match-all)
66639423781 packets, 74849682635166 bytes
30 second offered rate 260369000 bps, drop rate 0 bps //匹配此class-map的流量速率
Match: access-group name tra1_acl
Queueing
queue limit 91250 (packets)
(queue depth/total drops/no-buffer drops) 0/0/0
(pkts queued/bytes queued) 66639405294/74849695040832
QoS Set
ip precedence 5
Packets marked 66639423781
police:
cir 365000000 bps, bc 8500000 bytes, be 13500000 bytes //注意cir、bc和be的單位
conformed 66191701966 packets, 74341131469597 bytes; action: transmit
exceeded 218369922 packets, 232627302399 bytes; action: set-prec-transmit 4
violated 229208950 packets, 275718927918 bytes; action: set-prec-transmit 3
conformed 256761000 bps, exceed 1656000 bps, violate 1939000 bps //每個action的流量速率，注意這三個值總和應(yīng)該大致等于上面的總速率;
bandwidth="360px",height="auto" />
11315788699 packets, 7283900643868 bytes
30 second offered rate 10753000 bps, drop rate 0 bps
(pkts queued/bytes queued) 24700897941/20350618920708
QoS Set
ip precedence 2
Packets marked 22958504481
switch-a#必要命令解釋：
plicy cir 365000000 bc 8500000 be 13500000 conform-action transmit exceed-action set-prec-transmit 3 violate-action set-prec-transmit 2
cir為承諾的帶寬速率，即需要保證的帶寬速率，單位為bps;
bc為普通突發(fā)，單位為bytes;
be為最高突發(fā)，單位為bytes;
set-prec-transmit,表示設(shè)置IP優(yōu)先級并轉(zhuǎn)發(fā)數(shù)據(jù)包;
上 面整體命令解釋為：承諾帶寬365Mbps,普通突發(fā)為8.5Mbytes,最高突發(fā)為13.5Mbytes.當速率小于450Mbps(365+85) 是轉(zhuǎn)發(fā)數(shù)據(jù)包，當超過450Mbps小于500Mbps(365+135)是重寫IP優(yōu)先級為3并轉(zhuǎn)發(fā)數(shù)據(jù)包，當超過500Mbps是重寫IP優(yōu)先級為2 并轉(zhuǎn)發(fā)數(shù)據(jù)包。
以上就是關(guān)于pos機配置教學,CISCO路由器典型QoS配置案例詳解的知識，后面我們會繼續(xù)為大家整理關(guān)于pos機配置教學的知識，希望能夠幫助到大家！
