Configuring Layer 2 Protocol Tunneling on EX Series Switches (CLI Procedure)
Layer 2 protocol tunneling (L2PT) allows you to send Layer 2 protocol data units (PDUs)
across a service provider network and deliver them to EX Series switches at a remote
location. This feature is useful when you have a network that includes remote sites that
are connected across a service provider network and you want to run Layer 2 protocols
on switches connected across the service provider network.
Tunneled Layer 2 PDUs do not normally arrive at high rate. If the tunneled Layer 2 PDUs
do arrive at high rate, there might be a problem in the network. Typically, you would want
to shut down the interface that is receiving a high rate of tunneled Layer 2 PDUs so that
the problem can be isolated. You do so using the
shutdown-threshold
statement.
However, if you do not want to completely shut down the interface, you can configure
the switch to drop tunneled Layer 2 PDUs that exceed a certain threshold using the
drop-threshold
statement.
There are no default settings for
drop-threshold
and
shutdown-threshold
. If you do not
specify these thresholds, then no thresholds are enforced. As a result, the switch tunnels
all Layer 2 PDUs regardless of the speed at which they are received, although the number
of packets tunneled per second might be limited by other factors.
You can specify a drop threshold value without specifying a shutdown threshold value,
and you can specify a shutdown threshold value without specifying a drop threshold
value. If you specify both threshold values, then the drop threshold value must be less
than or equal to the shutdown threshold value. If the drop threshold value is greater than
the shutdown threshold value and you try to commit the configuration, the commit will
fail.
NOTE:
If the switch receives untagged Layer 2 control PDUs to be tunnelled,
then you must configure the switch to map untagged (native) packets to an
L2PT-enabled VLAN. Otherwise, the untagged Layer 2 control PDU packets
are discarded. For more information, see “Understanding Q-in-Q Tunneling
on EX Series Switches” on page 1293 and “Configuring Q-in-Q Tunneling (CLI
Procedure)” on page 1386.
To configure L2PT on an EX Series switch:
1.
Because L2PT operates under the Q-in-Q tunneling configuration, you must enable
Q-in-Q tunneling before you can configure L2PT. Enable Q-in-Q tunneling on VLAN
customer-1
:
[edit]
user@switch#
set vlans customer-1
dot1q-tunneling
2.
Enable L2PT for the Layer 2 protocol you want to tunnel, on the VLAN:
•
To enable L2PT for a specific protocol (here, STP):
[edit]
user@switch#
set vlans customer-1 dot1q-tunneling
layer2-protocol-tunneling
stp
Copyright © 2010, Juniper Networks, Inc.
1392
Complete Software Guide for Junos
®
OS for EX Series Ethernet Switches, Release 10.3
Содержание JUNOS OS 10.3 - SOFTWARE
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Страница 543: ...CHAPTER 27 Operational Mode Commands for Configuration Management 447 Copyright 2010 Juniper Networks Inc ...
Страница 631: ...CHAPTER 33 Operational Mode Commands for User and Access Management 535 Copyright 2010 Juniper Networks Inc ...
Страница 709: ...CHAPTER 38 Operational Mode Commands for System Services 613 Copyright 2010 Juniper Networks Inc ...
Страница 763: ...CHAPTER 41 Configuration Statements for System Monitoring 667 Copyright 2010 Juniper Networks Inc ...
Страница 817: ...CHAPTER 42 Operational Mode Commands for System Monitoring 721 Copyright 2010 Juniper Networks Inc ...
Страница 1014: ...Copyright 2010 Juniper Networks Inc 918 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
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Страница 1163: ...CHAPTER 49 Operational Mode Commands for Virtual Chassis 1067 Copyright 2010 Juniper Networks Inc ...
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Страница 1323: ...CHAPTER 56 Operational Mode Commands for Interfaces 1227 Copyright 2010 Juniper Networks Inc ...
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Страница 1565: ...CHAPTER 63 Operational Mode Commands for Bridging and VLANs 1469 Copyright 2010 Juniper Networks Inc ...
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Страница 1731: ...CHAPTER 69 Operational Mode Commands for Spanning Tree Protocols 1635 Copyright 2010 Juniper Networks Inc ...
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Страница 2107: ...CHAPTER 74 Operational Commands for Layer 3 Protocols 2011 Copyright 2010 Juniper Networks Inc ...
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Страница 2517: ...CHAPTER 80 Operational Mode Commands for IGMP Snooping and Multicast 2421 Copyright 2010 Juniper Networks Inc ...
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Страница 2643: ...Figure 51 Topology for Configuration 2547 Copyright 2010 Juniper Networks Inc Chapter 82 Examples Access Control Configuration ...
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Страница 2841: ...CHAPTER 86 Operational Commands for 802 1X 2745 Copyright 2010 Juniper Networks Inc ...
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Страница 2911: ...CHAPTER 92 Operational Mode Commands for Rate Limiting 2815 Copyright 2010 Juniper Networks Inc ...
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Страница 3081: ...CHAPTER 99 Operational Mode Commands for Port Security 2985 Copyright 2010 Juniper Networks Inc ...
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Страница 3217: ...CHAPTER 106 Operational Mode Commands for Firewall Filters 3121 Copyright 2010 Juniper Networks Inc ...
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Страница 3367: ...CHAPTER 113 Operational Mode Commands for CoS 3271 Copyright 2010 Juniper Networks Inc ...
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Страница 3435: ...CHAPTER 120 Operational Mode Commands for PoE 3339 Copyright 2010 Juniper Networks Inc ...
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Страница 3529: ...CHAPTER 126 Operational Mode Commands for MPLS 3433 Copyright 2010 Juniper Networks Inc ...
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Страница 3929: ...CHAPTER 135 Operational Mode Commands for General Network Management and Monitoring 3833 Copyright 2010 Juniper Networks Inc ...
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