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OfficeServ 7400

Enterprise IP Solutions. OfficeServ 7400. Quick Install Guide - Data Server – GSIM QoS. Mar, 2006 OfficeServ Lab. Samsung Electronics Co., Ltd. GSIM QoS Architectures – based on BCM5696. Marking & Policing. Classification. MASKing (Mask Table). FILTERing (Rule Table). Full match.

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OfficeServ 7400

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  1. Enterprise IP Solutions OfficeServ 7400 Quick Install Guide- Data Server –GSIM QoS Mar, 2006 OfficeServ Lab. Samsung Electronics Co., Ltd.

  2. GSIM QoS Architectures – based on BCM5696 Marking & Policing Classification MASKing (Mask Table) FILTERing (Rule Table) Full match METERing (Metering Table) out-of-profile In-profile Actions (Rule Table) Out-Actions (Rule Table) Partial match NO_MATCH_ACTION (Mask Table) DROP Marking Mapping drop_pre ECN Ingress Egress Buffer Manager (drop precedence packet/cell limit) Shaper (per egress port) Queue Scheduler (SP, RR, WRR) Packet out

  3. Configuration : Ingress QoS

  4. Configuration : Creating Class map(1) Layer2 to Layer4 classification is supported.

  5. Configuration : Creating Class Map(2) Note that if a class_map is created, it implicitly contains a class_entry as configured.

  6. Configuration : Creating Class Entry New class entry’s match rule is inherited from that of its class map. So, only selected fields for the class map can be configured for class map entries. Especially, it is mandatory to configure range of IP or/and port fields of a class entry using the same bit-mask values as the class map. For above example, if netmask of class map for src/dest ip is 0xffffff00(/24), netmask of class entry for ip src/dest must be same. Also, this holds for port range. For above example, Mask value of source port is 0xfff0(/12).

  7. Configuration : Creating Policy Map(1) Previously configured class maps can be associated with a new policy map. An incoming packet is searched against class_maps in the ascendant manner. 10 is lowest(highest priority) sequence. If multiple class_maps are matched, incremental processing will be done but in case of conflicts(permit of one class_map, deny of the other), policy of class_map of lower sequence number is applied.

  8. Configuration : Creating Policy Map(2) Default action for all class_maps associated with a policy_map is permit as confirm action. User can add/delete/modify actions.

  9. Configuration : Policy Actions(1)

  10. Configuration : Policy Actions(2) Shaping by Token bucket. Limit (token rate), burst(bucket size) If rate-limit is configured, actions are determined whether rate of traffic of this class is above limit or not. traffic rate > limit => exceed actions are selected. traffic rate <= limit => confirm actions are selected.

  11. Configuration : Policy Actions(3)

  12. Configuration : Service Policy

  13. Configuration : Egress QoS

  14. Configuration : CoS Mapping • A priority value for packet determined by 802.1p priority or configured priority by policy actions is mapped to a CoS queue according to CoS mapping. Multiple priority values can be mapped to one queue. • 2. Threshold of WRED is configurable. Generally, CoS queue with low priority has shorter threshold than that of high priority. If CoS queue length is larger than threshold, packets with drop precedence as 1 are dropped.

  15. Configuration : Scheduler 3 types scheduler modes - strict-priority - Round-robin - weighted-round-robin weight value means packet count.

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