Configuring Vsl Qos - Cisco Catalyst 4500 series Administration Manual

Chapter 5 Configuring Virtual Switching Systems
LMP hello timer
Interface
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Gi1/3/11
*T5 = min_rx * multiplier
Cfg : Configured Time
Cur : Current Time
Rem : Remaining Time

Configuring VSL QoS

When a physical port is configured as a member of a VSL port-channel, a queuing policy is automatically
attached to the VSL member ports. This queuing policy provides a dedicated queue for VSS
Management, VSLP, BFD, Layer 2 and Layer 3 control protocols, and voice and video data traffic. Each
queue is provided with a minimum bandwidth, ensuring that VSS management and control protocol
packets are not dropped when congestion occurs on the VSL. The bandwidth assigned to a class of traffic
is the minimum bandwidth that is guaranteed to the class during congestion. The VSL link uses Transmit
Queue Sharing, where the output link bandwidth is shared among multiple queues of a given VSL port.
Any modification or removal of VSL Queuing policy is restricted in a VSS system.
The following command sequence is inserted automatically by software.
interface TenGigabitEthernet1/1/1
switchport mode trunk
switchport nonegotiate
no lldp transmit
no lldp receive
no cdp enable
channel-group 10 mode on
service-policy output VSL-Queuing-Policy
end
Switch# show policy-map VSL-Queuing-Policy
Policy Map VSL-Queuing-Policy
class-map match-any VSL-MGMT-PACKETS
match access-group name VSL-MGMT
class-map match-any VSL-DATA-PACKETS
match any
class-map match-any VSL-L2-CONTROL-PACKETS
OL-30933-01
Hello Tx (T4) ms
State Cfg
operational -
Class VSL-MGMT-PACKETS
bandwidth percent 5
Class VSL-L2-CONTROL-PACKETS
bandwidth percent 5
Class VSL-L3-CONTROL-PACKETS
bandwidth percent 5
Class VSL-VOICE-VIDEO-TRAFFIC
bandwidth percent 30
Class VSL-SIGNALING-NETWORK-MGMT
bandwidth percent 10
Class VSL-MULTIMEDIA-TRAFFIC
bandwidth percent 20
Class VSL-DATA-PACKETS
bandwidth percent 20
Class class-default
bandwidth percent 5
Hello Rx (T5*) ms
Cur Rem Cfg
1000 708 -
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)SG
Configuring a VSS
Cur Rem
30000 29144
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