Hi,
I'm just wondering why my new cisco 1721 (IOS 123-9) don't synchronise ATM as fast as my c827 (IOS 123-9) on the same line. The DSLAM in front is Alcatel.
The c827 syncs at 7616/1024 and the c1721 only at 7616/928 Loosing about 100kbps on upload
The c1721 in auto mode selects ANSI T1.413, the c1721 selects g.dmt
So I've tried all the dsl operating-modes possibles and no improvement on the upload way.
Any idea ?
Here is my c1721 config for ATM with ANSI-DMT like th c827
---------------------- interface ATM0 bandwidth 6400 no ip address no atm ilmi-keepalive dsl operating-mode ansi-dmt pvc 8/35 encapsulation aal5mux ppp dialer dialer pool-member 1 ! Here is the show dsl inter atm0
-------------------------------- Alcatel 20150 chipset information ATU-R (DS) ATU-C (US) Modem Status: Showtime (DMTDSL_SHOWTIME) DSL Mode: ANSI T1.413 ANSI Issue/rev: 2/1 2/1 Vendor ID: 0x0022 0x0022 Capacity Used: 87% 98% Noise Margin: 10.0 dB 7.0 dB Output Power: 20.0 dBm 12.0 dBm Attenuation: 26.5 dB 16.0 dB Defect Status: None None Last Fail Code: None Selftest Result: 0x00 Subfunction: 0x15 Interrupts: 3992 (0 spurious) PHY Access Err: 0 Activations: 3 Init FW: embedded Operation FW: embedded SW Version: 3.8131 FW Version: 0x1A04
Interleave Fast Interleave Fast Speed (kbps): 7616 0 928 0 Reed-Solomon EC: 0 0 2 0 CRC Errors: 0 0 0 0 Header Errors: 0 0 0 0 Bit Errors: 0 0 BER Valid sec: 41 0 BER Invalid sec: 0 0