Znyx Networks bh5700 Class of Service COS, Egress Queues, Ingress Classification, Or for Ospf

Or for OSPF:

cp /etc/rcZ.d/examples/S55gatedOspf /etc/rcZ.d

cp /etc/rcZ.d/examples/gated.conf.ospf /etc/rcZ.d

•Open and make configuration changes to the listed conf file to coincide with the current Layer 3 configuration (that is, adjust IP addresses and number of interfaces available). See GateD documentation if you have questions regarding the conf file.

•Run the OpenArchitect zsync command to save your changes. Be sure your changes are correct:

Zsync

•Reboot the switch. After rebooting, your switch operates as a Layer 3 switch with GateD routing.

Class of Service (COS)

This following section provides information on using the OpenArchitect switch to provide Class of Service (COS) support. The switching fabric architecture defines the scope of the COS parameters. Some apply to an individual port, and others apply to the whole switch. It is important for the user to understand the scope of the parameters to ensure that the expected behavior occurs.

Egress Queues

The Ethernet Switch Blade fabric switch provides 1 to 8 COS queues per egress port, and for packets destined to the CPU from the switching fabric. By default, a freshly booted OpenArchitect switch has a single queue per egress port (and the CPU).

Ingress Classification

Incoming packets are mapped to queues based on their priority tags. The built-in behavior of the Ethernet Switch Blade uses the 802.1p tag within a packet as the queue selector. There is one COS to queue selector map per port.

By using the Linux iptables utility and zfilterd with ztmd, the queue selection can be based on any information in the first 64 bytes of the IP packet header. The default OpenArchitect switch behavior has all COS values mapping to a single queue on each of the egress ports.

A default priority for an untagged packet can be assigned for each port. By default, these incoming priority values are all mapped to COS queue 0. To change the default priority for untagged packets, or to define the mapping from priority values to COS queues, use the zcos command (refer to Appendix A).

Ethernet Switch Blade User's Guide release 3.2.2j page 57