Connectivity Guide

1 Create a default DSCP trust map.
OS10(config)# trust dscp-map default
OS10(config-tmap-dscp-map)#
2 Apply the map on a specic interface or on system-qos global level.
• Interface level
OS10(conf-if-eth1/1/1)# trust-map dscp default
• System-qos level
OS10(config-sys-qos)# trust-map dscp default
ACL based classication
Classify the ingress trac by matching the packet elds using ACL entries.
Classify the trac ows based on QoS-specic elds or generic elds, using IP or MAC ACLs. Create a class-map template to match the
elds.
OS10 allows matching any of the elds or all the elds based on the match type you congure in the class-map.
Use the access-group match lter to match MAC or IP ACLs. You can congure a maximum of four access-group lters in a class-map:
• 802.1p CoS
• VLAN ID (802.1.Q)
• DSCP + ECN
• IP precedence
OS10 supports conguring a range of or comma-separated values of match lters. When you apply the same match lter with new values,
the system overwrites the previous values with the new values.
Congure ACL based classication
1 Create a class-map of type qos.
OS10(config)# class-map cmap
2 Dene the elds to match, based on:
• 802.1p CoS
OS10(config-cmap-qos)# match cos 0,4-7
• all the 802.1p CoS values excluding a few
OS10(config-cmap-qos)# match not cos 3,4
• VLAN ID (range of or comma separated VLAN match is not supported)
OS10(config-cmap-qos)# match vlan 100
• IP DSCP
OS10(config-cmap-qos)# match ip dscp 3,5,20-30
• IP DSCP + ECN
OS10(config-cmap-qos)# match ip dscp 3,5,20-30 ecn 2
• IP precedence
OS10(config-cmap-qos)# match ip precedence 2
• IPv6 DSCP
OS10(config-cmap-qos)# match ipv6 dscp 3,5,20-30
• IPv6 DSCP + ECN
OS10(config-cmap-qos)# match ipv6 dscp 3,5,20-30 ecn 2
• IPv6 precedence
OS10(config-cmap-qos)# match ipv6 precedence 2
• any IP (IPv4 or IPv6) precedence
OS10(config-cmap-qos)# match ip-any precedence 2
Quality of service
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