I recently discovered that the (traffic control) tc linklayer calculations for ATM/ADSL have been broken by: commit 56b765b79 (htb: improved accuracy at high rates).
Thus, people shaping on ADSL links, using e.g.: tc class add ... htb rate X ceil Y linklayer atm overhead 10 Will no-longer get ATM cell tax/overhead adjusted. How can we solve/fix this? Perhaps we can change to use the "stab" system instead (as it does not seem to be broken by the commit). But how do we facilitate a change to use "stab" system (for all the scripts using the old option)? Can we change the iproute2/tc command to handle this transparently, or should we give an error/warning if someone uses "tc" and "linklayer" on a kernel above v.3.8. ? History: - My linklayer ATM changes appeared in kernel 2.6.24 (and iproute2 2.6.25) - The STAB changes appeared in kernel 2.6.27 -- Best regards, Jesper Dangaard Brouer MSc.CS, Sr. Network Kernel Developer at Red Hat Author of http://www.iptv-analyzer.org LinkedIn: http://www.linkedin.com/in/brouer _______________________________________________ Bloat mailing list [email protected] https://lists.bufferbloat.net/listinfo/bloat
