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Cisco 10000 Series Router Quality of Service Configuration Guide
OL-7433-09
Chapter 16 Fragmenting and Interleaving Real-Time and Nonreal-Time Packets
Multilink PPP-Based Link Fragmentation and Interleaving
Restrictions and Limitations for MLP Over Frame Relay-Based LFI
•
The router supports a maximum of one member link per bundle. The member link can be up to
2048 kbps.
•
The router supports a maximum of 2048 bundles per system and a maximum of 2048 member links
per system.
•
The valid multilink interface values are 10,000 and higher.
•
Interleaving occurs on only one member link.
•
Interface fragmentation and Frame Relay traffic shaping cannot be configured at the same time on
an interface. Do not configure the
frame-relay traffic-shaping
command on an interface with
Frame Relay interface fragmentation configured.
•
The
frame-relay fair-dlci queuing
command cannot be configured on an interface with Frame
Relay interface fragmentation configured. To specify QoS on LFI-enabled interfaces, use service
policies (see
Chapter 13, “Defining QoS for Multiple Policy Levels”
).
•
Local Management Interface (LMI) traffic is not fragmented.
•
Cisco IOS software supports a maximum of 4096 total virtual template interfaces.
•
We strongly recommend that you use only strict priority queues when configuring MLP over Frame
Relay-based LFI. For more information, see
Chapter 8, “Prioritizing Services.”
Configuring MLP-Based LFI
Table 16-4
lists the components you must configure for MLP-based LFI.
Table 16-4
Configuration Requirements for MLP-Based LFI
LFI Type
MLP Bundle
Member Links
Virtual Template
Service Policy
MLP over Serial-Based
LFI
Required
Required
Not Required
Not Required
Single-VC MLP over
ATM-Based LFI
Required
Required
Required
Required
1
1.
A service policy with a priority queue defined must be attached to the multilink interface. The VC does not require a service
policy.
Multi-VC MLP over
ATM-Based LFI
Required
Required
Required
Required
MLP over Frame
Relay-Based LFI
Required
Required
Required
Required
2
2.
A service policy with the
shape
command defined must be attached to the VC. A service policy with a priority queue defined
must be attached to the multilink interface.