Date: Thu, 16 Mar 2006 14:10:52 +0300 From: "Yuriy N. Shkandybin" <jura@networks.ru> To: <freebsd-net@freebsd.org>, <freebsd-stable@freebsd.org> Subject: jumbo em Message-ID: <011901c648ea$4a738670$0701010a@notebook>
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Hello=20 I have 2 freebsd servers connected by dedicated wire via em interfaces. systems =3D 6.1-PRERELEASE #0: Tue Mar 14 11:58:23 MSK 2006 1st) man em says MTU size for Jumbo Frames is 16114 and i'm sure i've setup this on = freebsd-5 and probably ealier 6.0 But now=20 ifconfig em1 mtu 16114 ifconfig: ioctl (set mtu): Invalid argument 16110 - max possible 2nd)=20 Seems ok with mss=20 13:59:36.590411 IP 10.0.0.1.31408 > 10.0.0.2.22: S = 3543827971:3543827971(0) win 65535 <mss 16070,nop,wscale = 0,nop,nop,timestamp[|tcp]> 13:59:36.590462 IP 10.0.0.2.22 > 10.0.0.1.31408: S = 3003760814:3003760814(0) ack 3543827972 win 65535 <mss 16070,nop,wscale = 0,nop,nop,timestamp[|tcp]> seems jumbo working but=20 983/652/1635 mbufs in use (current/cache/total) 908/410/1318/25600 mbuf clusters in use (current/cache/total/max) 908/329 mbuf+clusters out of packet secondary zone in use = (current/cache) 0/0/0/0 4k (page size) jumbo clusters in use (current/cache/total/max) 0/0/0/0 9k jumbo clusters in use (current/cache/total/max) 0/0/0/0 16k jumbo clusters in use (current/cache/total/max) 2061K/983K/3044K bytes allocated to network (current/cache/total) 0/14496/3371 requests for mbufs denied (mbufs/clusters/mbuf+clusters) 0/0/0 requests for jumbo clusters denied (4k/9k/16k) 54/129/6656 sfbufs in use (current/peak/max) 0 requests for sfbufs denied 0 requests for sfbufs delayed 23799 requests for I/O initiated by sendfile 107 calls to protocol drain routines thereis empty info about jumbos. Is it ok? Jura
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