Performance And Scalability For Multi-Vc Mlp Over Atm-Based Lfi; Mlp Bundle Interface And Service Policies; Restrictions And Limitations For Multi-Vc Mlp Over Atm-Based Lfi - Cisco 10000 Series Configuration Manual
Quality of service configuration guide
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Multilink PPP-Based Link Fragmentation and Interleaving
MLP Bundle Interface and Service Policies
The router applies a service policy, attached to a multilink interface, to only the MLP bundle interface.
The QoS actions defined by the service policy are applied to the outbound nonreal-time packets before
the packets reach the bundle first-in first-out (FIFO) queue. The nonreal-time packets are fragmented in
the FIFO queue and then the real-time packets are interleaved between the fragments as the real-time
packets exit their priority queue.
Performance and Scalability for Multi-VC MLP Over ATM-Based LFI
The following list describes how to enhance performance and scalability for Multi-VC MLP over
ATM-based LFI:
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For more information, see the
Broadband Aggregation, Leased-Line, and MPLS Configuration
Restrictions and Limitations for Multi-VC MLP Over ATM-Based LFI
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Cisco 10000 Series Router Quality of Service Configuration Guide
16-20
Configure the following commands and recommended values on the virtual template interface:
ppp max-configure 110
–
–
ppp max-failure 100
–
ppp timeout retry 5
–
keepalive 30
Configure the hold-queue command in interface configuration mode for all physical interfaces,
except when configuring the ATM OC-12 line card. The OC-12 does not require the hold-queue
command.
Multi-VC MLP over ATM member links are restricted to non-aggregated PVCs (for example,
variable bit rate-nonreal-time (VBR-nrt) and constant bit rate (CBR) ATM traffic classes only).
Each MLP over ATM member link can be up to 2048 kbps.
The router supports a maximum of 10 member links (ATM PVCs) per bundle.
The router supports a maximum of 1250 bundles per system and a maximum of 2500 member links
per system.
For Cisco IOS Release 12.2(28)SB and later releases, the valid multilink interface values are from
1 to 9999. For Cisco IOS Release 12.2(31)SB2 and later releases, valid values are from 1 to 9999
and 65,536 to 2,147,483,647.
All member links in a MLP bundle must have the same encapsulation type and bandwidth.
Performance is not guaranteed when member links have different bandwidths.
Interleaving occurs on one member link.
MLP VCs cannot be on-demand VCs that are automatically provisioned.
Associating MLP over ATM VCs with ATM virtual paths (VPs) is discouraged, though not
prevented.
Cisco IOS software supports a maximum of 4096 total virtual template interfaces.
We strongly recommend that you use only strict priority queues when configuring Multi-VC MLP
over ATM-based LFI. For more information, see
Chapter 16
Fragmenting and Interleaving Real-Time and Nonreal-Time Packets
"Scalability and Performance"
Chapter 8, "Prioritizing Services."
chapter in the
Cisco 10000 Series Router
Guide.
OL-7433-09
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