Configure DSL
Cisco Cisco 8100 Series Secure Routers support asymmetric digital subscriber line (ADSL) 1/2/2+ and very high speed digital subscriber line 2 (VDSL2) transmission modes, also called multimode.
Configure ADSL
Perform the below mentioned steps to configure a DSL controller.
Configure auto mode
SUMMARY STEPS
- enable
- configure terminal
- interface ATM 0/2/0
- no shutdown
- controller VDSL slot/subslot/port
- operating mode auto
- end
DETAILED STEPS
| Command or Action | Purpose | |
|---|---|---|
|
Step 1 |
enable Example: |
Enables privileged EXEC mode. |
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Step 2 |
configure terminal Example: |
Enters global configuration mode. |
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Step 3 |
interface ATM 0/2/0 Example: |
Select and enter configuration mode for the ATM 0/2/0 interface. |
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Step 4 |
no shutdown Example: |
Activate the ATM 0/2/0 interface by using the no shutdown command. This ensures the interface remains operational and available for control path communication between the host and the DSL module PHY. |
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Step 5 |
controller VDSL slot/subslot/port Example: |
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Step 6 |
operating mode auto Example: |
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Step 7 |
end Example: |
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Configure ADSL1 and ADSL2/2+ Annex A mode
SUMMARY STEPS
- enable
- configure terminal
- interface ATM 0/2/0
- no shutdown
- controller VDSL slot/subslot/port
- operating mode {adsl1 | adsl2 annex a | adsl2+ | annex a}
- end
DETAILED STEPS
| Command or Action | Purpose | |
|---|---|---|
|
Step 1 |
enable Example: |
Enables privileged EXEC mode. |
|
Step 2 |
configure terminal Example: |
Enters global configuration mode. |
|
Step 3 |
interface ATM 0/2/0 Example: |
Select and enter configuration mode for the ATM 0/2/0 interface. |
|
Step 4 |
no shutdown Example: |
Activate the ATM 0/2/0 interface by using the no shutdown command. This ensures the interface remains operational and available for control path communication between the host and the DSL module PHY. |
|
Step 5 |
controller VDSL slot/subslot/port Example: |
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Step 6 |
operating mode {adsl1 | adsl2 annex a | adsl2+ | annex a} Example: |
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Step 7 |
end Example: |
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Configure VDSL2
SUMMARY STEPS
- enable
- configure terminal
- interface Ethernet 0/2/0
- no shutdown
- controller VDSL slot/subslot/port
- operating mode mode
- end
DETAILED STEPS
| Command or Action | Purpose | |
|---|---|---|
|
Step 1 |
enable Example: |
Enables privileged EXEC mode. |
|
Step 2 |
configure terminal Example: |
Enters global configuration mode. |
|
Step 3 |
interface Ethernet 0/2/0 Example: |
Select and enter configuration mode for the Ethernet 0/2/0 interface. |
|
Step 4 |
no shutdown Example: |
Activate the Ethernet 0/2/0 interface by using the no shutdown command. This ensures the interface remains operational and available for control path communication between the host and the DSL module PHY. |
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Step 5 |
controller VDSL slot/subslot/port Example: |
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Step 6 |
operating mode mode Example: |
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Step 7 |
end Example: |
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Examples of DSL Interface Configuration
In Cisco IOS XE, ATM PVCs can be configured under ATM sub-interfaces only. PVC configuration is not allowed under the main ATM interface. You can configure 8 point to point sub-interfaces either with one PVC configured under each point to point sub-interface or single multi-point sub-interface.
You do not need to configure the tx-ring-limit command in the Cisco 8100 Series Secure Routers, if you are migrating from classic Cisco IOS and usingtx-ring-limit command to reduce the latency. Because the DSL modules buffers have been fine tuned for the optimal performance and latency.
The following example shows how to configure ATM interface:
interface ATM0/3/0
no ip address
no atm oversubscribe
no atm enable-ilmi-trap
no shut
interface ATM0/3/0.1 point-to-point
ip address 192.0.2.1 255.255.255.0
no atm enable-ilmi-trap
pvc 1/77
vbr-rt 400 400
The following example shows how to configure Ethernet interface.
interface Ethernet0/2/0
ip address 192.0.2.1 255.255.255.0
load-interval 30
no negotiation auto
If the trained mode is VDSL2 or VDSL2+, the TC mode should be in Packet Transfer Mode (PTM). In this case, the PTM Ethernet interface is in the up state. All other upper layer parameters such as PPP, IP, and so on should be configured under the Ethernet interface. If the trained mode is ADSL, ADSL2, or ADSL2+, the TC mode should be ATM and all the upper layer parameters should be configured under the ATM Permanent Virtual Circuit (PVC). If you change the operating mode between ADSL and VDSL, you need not to reboot the router in order to activate the corresponding Ethernet or ATM interfaces. In case of PTM mode, check with your ISP if they are expecting Dot1q tag configuration on the CPE. ISP should provide Dot1q tag value.
Router(config)#interface Ethernet0.835
Router(config-subif)#encapsulation dot1Q 835
Router(config-subif)#pppoe-client dial-pool-member 1
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