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<TITLE>RE: [j-nsp] Interface mirroring?</TITLE>
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<P><FONT SIZE=2>Rich,</FONT>
</P>
<P><FONT SIZE=2>Use link aggregation - 802.3ad (MLT, EtherChannel etc..);</FONT>
</P>
<P><FONT SIZE=2>Use a 'virtual' Aggregated Ethernet interface - ae*.</FONT>
<BR><FONT SIZE=2>You can also use Sonet interfaces, but I have never tried.</FONT>
</P>
<P><FONT SIZE=2>[edit interfaces]</FONT>
<BR><FONT SIZE=2>ae0 {</FONT>
<BR><FONT SIZE=2> vlan-tagging;</FONT>
<BR><FONT SIZE=2> unit 0 {</FONT>
<BR><FONT SIZE=2> vlan-id 100;</FONT>
<BR><FONT SIZE=2> family inet {</FONT>
<BR><FONT SIZE=2> address 10.1.1.1/24;</FONT>
<BR><FONT SIZE=2> }</FONT>
<BR><FONT SIZE=2> }</FONT>
<BR><FONT SIZE=2>}</FONT>
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<P><FONT SIZE=2>[edit chassis]</FONT>
<BR><FONT SIZE=2>aggregated-devices {</FONT>
<BR><FONT SIZE=2> ethernet {</FONT>
<BR><FONT SIZE=2> device-count 2; <- 2 in this case</FONT>
<BR><FONT SIZE=2> }</FONT>
<BR><FONT SIZE=2>}</FONT>
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<P><FONT SIZE=2>[edit interfaces]</FONT>
<BR><FONT SIZE=2>ge-1/3/0 {</FONT>
<BR><FONT SIZE=2> gigether-options {</FONT>
<BR><FONT SIZE=2> 802.3ad ae0;</FONT>
<BR><FONT SIZE=2> }</FONT>
<BR><FONT SIZE=2>}</FONT>
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<P><FONT SIZE=2>[edit interfaces ae0 ]</FONT>
<BR><FONT SIZE=2>aggregated-ether-options {</FONT>
<BR><FONT SIZE=2> link-speed 1g;</FONT>
<BR><FONT SIZE=2> minimum-links 5;</FONT>
<BR><FONT SIZE=2>}</FONT>
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<P><FONT SIZE=2>HTH</FONT>
</P>
<BR>
<P><FONT SIZE=2>-----Original Message-----</FONT>
<BR><FONT SIZE=2>From: variable@ednet.co.uk [<A HREF="mailto:variable@ednet.co.uk">mailto:variable@ednet.co.uk</A>]</FONT>
<BR><FONT SIZE=2>Sent: 21 May 2003 14:29</FONT>
<BR><FONT SIZE=2>To: juniper-nsp@puck.nether.net</FONT>
<BR><FONT SIZE=2>Subject: [j-nsp] Interface mirroring?</FONT>
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<P><FONT SIZE=2>Hi all,</FONT>
</P>
<P><FONT SIZE=2>Quick question. We're setting up an M-40 with 2 gig-e interfaces so that </FONT>
<BR><FONT SIZE=2>failure of either interface (or the switch its plugged into) doesn't mean </FONT>
<BR><FONT SIZE=2>the M-40 is unavailable. We could setup VRRP between the interfaces, but </FONT>
<BR><FONT SIZE=2>there is about 20 (and growing) sub-interfaces that need to be failed over </FONT>
<BR><FONT SIZE=2>if one of the gig-e interfaces fail.</FONT>
</P>
<P><FONT SIZE=2>Is there an easier way to keep the two interfaces in sync other than </FONT>
<BR><FONT SIZE=2>editing both interfaces by hand everytime a change has to be made?</FONT>
</P>
<P><FONT SIZE=2>Thanks,</FONT>
</P>
<P><FONT SIZE=2>Rich</FONT>
</P>
<P><FONT SIZE=2>_______________________________________________</FONT>
<BR><FONT SIZE=2>juniper-nsp mailing list juniper-nsp@puck.nether.net</FONT>
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