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Copyright© 2005 DASAN Networks, Inc. V61XXF NOV. 2006.

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Presentation on theme: "Copyright© 2005 DASAN Networks, Inc. V61XXF NOV. 2006."— Presentation transcript:

1 Copyright© 2005 DASAN Networks, Inc. V61XXF NOV. 2006

2 DASAN Networks, Inc. - A Siemens Company Copyright© 2005 DASAN Networks, Inc.  Rule Cassify (Packet 구분 설정 )  Packet Type 별, host 별, Service Port 별로 Classify 한다.  Layer2, Mac, IP, TCP/UDP, Port NO., TCP Flag  Rule Action ( 정책 적용 )  Classify 한 패킷을 이용한 Rule 이 어떻게 적용될 것인지를 결정한다..  Scheduling ( 우선 순위 적용 )  패킷처리에 관한 우선순의를 설정한다. QoS 설정순서 QoS NOV. 2006

3 DASAN Networks, Inc. - A Siemens Company Copyright© 2005 DASAN Networks, Inc.  Packet Type 별 Classify [L2 Packet 구분 ]  # classify packet name ethtype packet_type  ethtype : ethener type field  Ex) 0800(ip), 8137(ipx), 0806(arp)  packet_type : packet 분류 (broadcast, multicast, unicast) QoS (Rule Classify) NOV. 2006

4 DASAN Networks, Inc. - A Siemens Company Copyright© 2005 DASAN Networks, Inc.  Host 별 Classify [Host Group Packet 구분 ]  # classify host name ip src|dst ip_address port diffserv vid  # classify host name mac src/dst mac_address port vid  src|dst : packet 의 source|destination 구분  port : switch 의 물리적인 port number  Diffserv : ip header 의 diffservc  Vid : vlan 의 VID [TC 사용의 경우 Port 설정이 되어 있어야 Config 가 가능 ] QoS (Rule Classify) NOV. 2006

5 DASAN Networks, Inc. - A Siemens Company Copyright© 2005 DASAN Networks, Inc.  Service port 별 Classify  # classify l4 name ip tcp|udp src|dst port [tcp_flag]  # classify l4 name ip icmp src|dst [code]  src|dst : packet 의 source|destination 구분  port : tcp/udp service port number  tcp_flag : tcp flag 를 조합하여 사용  code : icmp type code QoS (Rule Classify) NOV. 2006

6 DASAN Networks, Inc. - A Siemens Company Copyright© 2005 DASAN Networks, Inc.  Service port 별 Classify  # classify l4 name ip igmp src|dst [data]  # classify l4 name ip ipx type socket_num  src|dst : packet 의 source|destination 구분  data : query (1), report (2)  type : IPX packet type  sock_num : IPX socket number QoS (Rule Classify) NOV. 2006

7 DASAN Networks, Inc. - A Siemens Company Copyright© 2005 DASAN Networks, Inc.  Rule Classify  # classify main name add packet src_host dst_host src_l4 dst_l4 vid  packet : packet rule name  src_host : source host rule name  dst_host : destination host rule name  src_l4 : source host rule name  dst_l4 : destination l4 rule name  vlan : vlan 의 VID QoS (Rule Classify) NOV. 2006

8 DASAN Networks, Inc. - A Siemens Company Copyright© 2005 DASAN Networks, Inc.  Rule Action  # classify main name match queue queue_num  # classify main name match tc tc_id  # classify main name match tos tos_num  queue num : 할당할 queue number  tc_id : 할당할 TC ID  tos_num : 부여할 ToS Field 값 QoS (Rule Action) NOV. 2006

9 DASAN Networks, Inc. - A Siemens Company Copyright© 2005 DASAN Networks, Inc.  Overwrite  # set priority prior-remap tos tos tos_pre  # set priority prior-remap user cos new_cos  tos : ToS 값  tos_pre : 새롭게 할당할 ToS 의 Precedence  cos : CoS priority  new_cos : 새롭게 할당할 CoS 의 Priority QoS (Scheduling) NOV. 2006

10 DASAN Networks, Inc. - A Siemens Company Copyright© 2005 DASAN Networks, Inc.  Queue remap  # set priority queue-remap tos tos queue_num  # set priority queue-remap user cos queue_num  tos : ToS 값  cos : CoS priority  queue_num : 해당 패킷을 할당할 queue 번호 QoS (Scheduling) NOV. 2006

11 DASAN Networks, Inc. - A Siemens Company Copyright© 2005 DASAN Networks, Inc.  TC 조절  # set tc tc_id max max_bandwidth  # set tc tc_id guaranteed min_bandwidth  max_bandwidth : 최대 사용 가능한 대역폭을 Mbps 단위로 설정  max_bandwidth : 최소한 보장할 대역폭을 Mbps 단위로 설정 QoS (Scheduling) NOV. 2006

12 DASAN Networks, Inc. - A Siemens Company Copyright© 2005 DASAN Networks, Inc.  우선순위 설정  # set priority prior-precedence tos priority_1  # set priority prior-precedence user priority_1  # set priority queue-precedence tos priority_2  # set priority queue-precedence user priority_2  priority_1 : priority 가 높을수록 우선순위가 높다.  priority_2 : priority 가 높을수록 우선순위가 높다.  Packet 종류에 따른 우선순위와 각 queue 에 따른 우선순위를 설정할 수 있다. QoS (Scheduling) NOV. 2006

13 DASAN Networks, Inc. - A Siemens Company Copyright© 2005 DASAN Networks, Inc.  Strict Queuing  # classify host stream ip dst 224.10.0.1/24 any any any  # classify host www ip any any any any any  # classify main strict_queue add any any stream any any any  # classify main strict_queue match queue 6  # calssify main low-data add any any www any any any  # classify main low-data match queue 5  Queue 6 이 queue 5 보다 priority 가 높기때문에 Congestion 이 발생할 때 queue 6 의 패킷들은 모두 처리됨을 보장한다. QoS (Example) NOV. 2006

14 DASAN Networks, Inc. - A Siemens Company Copyright© 2005 DASAN Networks, Inc.  Weight Pair Queuing( 기존 )  # classify host a1 ip dst 224.10.0.1/24 any any any  # classify host a2 ip any any any any any  # classify host a3 ip dst any 24  # classify main a4 add any any a1 a3 any any  # classify main a4 match tc 1  # classify main a4 match queue 6  # calssify main a5 add any any a2 a3 any any  # classify main a5 match tc 2  # classify main a5 match queue 5  # set tc 1 max 90  # set tc 2 max 10  TC 를 이용할때는 egress 를 반드시 설정해야만 한다.  TC 가 처리할 수 있는 bandwidth 를 지정해줌으로써 weight pair queuing 이 동작된다. QoS (Example) NOV. 2006

15 DASAN Networks, Inc. - A Siemens Company Copyright© 2005 DASAN Networks, Inc.  Weight Pair Queuing(7.51 이후 )  #classify host multicast ip dst 233.69.12.0/24 any dscp any any  #classify host h4 ip src 219.184.144.1/32 any dscp any any  #classify host h5 ip src 219.184.145.1/32 any dscp any any  #classify host h6 ip src 219.184.146.1/32 any dscp any any  #classify host dst ip dst any 1 dscp any any  #classify main m4 add any h4 dst any any any  #classify main m4 match permit  #classify main m4 match tc 1  #classify main m5 add any h5 dst any any any  #classify main m5 match permit  #classify main m5 match tc 2  #classify main m6 add any h6 dst any any any  #classify main m6 match permit 3  #classify main m6 match tc 3 3  #set wfbd outport 1 weight 5,3,2 QoS (Example) NOV. 2006

16 DASAN Networks, Inc. - A Siemens Company Copyright© 2005 DASAN Networks, Inc.  Weight Pair Queuing(7.51 이후 )  #show wfbd outport 1 Port 1 : WFBD enable TC weight Calculated Bandwidth 1 5 50(%) 2 3 30(%) 3 2 18(%)  사용자가 원하는 Weight 값을 1-1024 까지 입력받고, Weight 값과 가장 근접한 register 값을 Chip 에 설정하고 설정된 register 값을 역으로 계산 ( 이때 설정가능한 Register 값이 32 개로 제한되어 있기 때문에 사용자가 설정한 Weight 값과 가장 근접한 Register 값을 계산하기 때문에 오차가 있을 수 있다.) 하여 Calculated Bandwidth 값을 산출한다. 주의할 점은 WFBD 는 TC 와 Output Port 가 적용된 Main Rule 에 적용한다. QoS (Example) NOV. 2006

17 DASAN Networks, Inc. - A Siemens Company Copyright© 2005 DASAN Networks, Inc. 감사합니다


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