Um einen Cisco IOS Router an einem Telekom Annex J ADSL im neuen BNG betreiben zu können ist ähnlich wie beim VDSL auf dem Ethernet auf dem ATM Interface ein entsprechender VLAN Tag nötig.

Die Konfiguration sieht wie folgt aus:

test-router#sh run int atm0/0/0
Building configuration…

Current configuration : 178 bytes
!
interface ATM0/0/0
description — WAN —
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
atm vc-per-vp 64
no atm ilmi-keepalive
end

test-router#sh run int atm0/0/0.7
Building configuration…

Current configuration : 114 bytes
!
interface ATM0/0/0.7 point-to-point
pvc 1/32
bridge-dot1q encap 7
pppoe-client dial-pool-number 1
!
End

Die Nutzung des ATM Sub-Interfaces ist zwingend erfoderlich, da der Befehl bridge-dot1q encap 7 im ATM Interface nach dem Reboot verschwindet. Erst im Subinterface ist er Rebootfest.

Getestet auf dem IOS 15.5(3)M6 und der Modemfirmware VA_A_39m_B_38h3_24h_o.bin.

test-router#sh ver | i IOS
Cisco IOS Software, C1900 Software (C1900-UNIVERSALK9-M), Version 15.5(3)M6, RELEASE SOFTWARE (fc2)
test-router#sh controllers vDSL 0/0/0
Controller VDSL 0/0/0 is UP

Daemon Status:           Up
[…]
Modem Status:            TC Sync (Showtime!)

DSL Config Mode:         AUTO
Trained Mode:   G.992.5 (ADSL2+) Annex J
TC Mode:                 ATM
Selftest Result:         0x00
DELT configuration:      disabled
DELT state:              not running

Full inits:             55
Failed full inits:      40
Short inits:            25
Failed short inits:     37

Firmware        Source          File Name
——–        ——          ———-
VDSL            user config     flash:VA_A_39m_B_38h3_24h_o.bin

Modem FW  Version:      150716_0926-4.02L.03.B2pvC038h3.d24h
Modem PHY Version:      B2pvC038h3.d24h
Trellis:                 ON                       ON
SRA:                     disabled                disabled
SRA count:              0                       0
Bit swap:                enabled                 enabled
Bit swap count:         112113                  1345
Line Attenuation:        52.0 dB                 36.0 dB
Signal Attenuation:      54.2 dB                 35.5 dB
Noise Margin:             5.7 dB                  5.9 dB
Attainable Rate:        10416 kbits/s            1951 kbits/s
Actual Power:            19.3 dBm                13.1 dBm
Total FECC:             21095028                         2384697
Total ES:               2877                     1184
Total SES:              1116                     3
Total LOSS:             85                       0
Total UAS:              113338                   113338
Total LPRS:             0                        0
Total LOFS:             442                      0
Total LOLS:             0                        0

DS Channel1     DS Channel0   US Channel1       US Channel0
Speed (kbps):             0             5624             0              2056
SRA Previous Speed:       0                0             0                 0
Previous Speed:           0             3452             0              1980
Total Cells:              0       3431086630             0        2825378336
User Cells:               0         69269238             0          21398987
Reed-Solomon EC:          0         14067201             0              9282
CRC Errors:               0            60804             0              1506
Header Errors:            0             1448             0                 2
Interleave (ms):       0.00             7.61          0.00              6.75
Actual INP:            0.00             6.62          0.00              1.13

Training Log :  Stopped
Training Log Filename : flash:vdsllog.bin