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<DIV>Thanks Jake. Actually, since the end device is VLAN-aware, I will have separate vlan interfaces with individual IP addresses, or separate sub-interfaces unless I cannot assign vlans to the sub-interfaces, instead of using secondaries. At least that's what I'm planning - haven't actually configured the ports yet.<BR> </DIV>Much appreciated,<BR>Eric Louie<BR>
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<B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> Jake Mertel <jake@nobistech.net><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> Eric A Louie <elouie@yahoo.com><BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Thu, October 4, 2012 5:13:33 PM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> RE: [HMS-SPAM] Re: [f-nsp] Tagged interfaces<BR></FONT><BR>
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<P class=MsoNormal><SPAN style="COLOR: #1f497d; FONT-SIZE: 11pt">The biggest difference is that each interface on a Cisco router has 1 “primary” address and the rest of the addresses are considered “secondary” addresses. For example:</SPAN></P>
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<P class=MsoNormal><SPAN style="COLOR: #1f497d; FONT-SIZE: 11pt">Cisco world:</SPAN></P>
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<P class=MsoNormal><SPAN style="COLOR: #1f497d; FONT-SIZE: 11pt">Int vlan 10</SPAN></P>
<P class=MsoNormal><SPAN style="COLOR: #1f497d; FONT-SIZE: 11pt">Ip address 10.0.0.1 255.255.255.0</SPAN></P>
<P class=MsoNormal><SPAN style="COLOR: #1f497d; FONT-SIZE: 11pt">Ip address 10.0.1.1 255.255.255.0 secondary</SPAN></P>
<P class=MsoNormal><SPAN style="COLOR: #1f497d; FONT-SIZE: 11pt">Ip address 10.0.2.1 255.255.255.0 secondary</SPAN></P>
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<P class=MsoNormal><SPAN style="COLOR: #1f497d; FONT-SIZE: 11pt">Foundry world:</SPAN></P>
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<P class=MsoNormal><SPAN style="COLOR: #1f497d; FONT-SIZE: 11pt">Int ve 10</SPAN></P>
<P class=MsoNormal><SPAN style="COLOR: #1f497d; FONT-SIZE: 11pt">Ip address 10.0.0.1/24</SPAN></P>
<P class=MsoNormal><SPAN style="COLOR: #1f497d; FONT-SIZE: 11pt">Ip address 10.0.1.1/24</SPAN></P>
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<P class=MsoNormal><SPAN style="COLOR: #1f497d; FONT-SIZE: 11pt">On your Cisco device, if you wanted to remove one of the secondary addresses, you would type “no ip address 10.0.1.1 255.255.255.0 secondary”. You cannot type “no ip address 10.0.0.1 255.255.255.0” to remove the primary prefixes when there are secondary prefixes configured, but you can change the primary prefix by typing “ip address 10.0.3.1 255.255.255.0”. This would leave all of your secondary addresses intact. </SPAN></P>
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<P class=MsoNormal><SPAN style="COLOR: #1f497d; FONT-SIZE: 11pt">I’ve caused myself a number of problems by forgetting to type “secondary” when configuring a Cisco interface to the point that I now have forced myself to type “ip address secondary” and then press the left arrow key to bring my cursor back before the “secondary” and then typing the IP address. </SPAN></P>
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<P class=MsoNormal><B><SPAN style="FONT-SIZE: 10pt">From:</SPAN></B><SPAN style="FONT-SIZE: 10pt"> foundry-nsp-bounces@puck.nether.net [mailto:foundry-nsp-bounces@puck.nether.net] <B>On Behalf Of </B>Eric A Louie<BR><B>Sent:</B> Thursday, October 04, 2012 4:48 PM<BR><B>To:</B> Josh Farrelly; foundry-nsp@puck.nether.net<BR><B>Subject:</B> [HMS-SPAM] Re: [f-nsp] Tagged interfaces</SPAN></P></DIV></DIV>
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<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt">Josh, that's a great document, thank you.</SPAN></P></DIV>
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<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt">I'm going to do the testing in the lab, but are there any functional advantages to using VLAN configurations versus sub-interface configuration on the Cisco device when converting from the Foundry Ethernet multiple IP address configuration?<BR> </SPAN></P></DIV>
<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt">Much appreciated,<BR>Eric Louie<BR>619-743-5375 </SPAN></P>
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<P style="MARGIN-BOTTOM: 12pt" class=MsoNormal><B><SPAN style="FONT-SIZE: 10pt">From:</SPAN></B><SPAN style="FONT-SIZE: 10pt"> Josh Farrelly <<A href="mailto:Josh.Farrelly@manukau.ac.nz" rel=nofollow target=_blank ymailto="mailto:Josh.Farrelly@manukau.ac.nz">Josh.Farrelly@manukau.ac.nz</A>><BR><B>To:</B> Eric A Louie <<A href="mailto:elouie@yahoo.com" rel=nofollow target=_blank ymailto="mailto:elouie@yahoo.com">elouie@yahoo.com</A>>; "<A href="mailto:foundry-nsp@puck.nether.net" rel=nofollow target=_blank ymailto="mailto:foundry-nsp@puck.nether.net">foundry-nsp@puck.nether.net</A>" <<A href="mailto:foundry-nsp@puck.nether.net" rel=nofollow target=_blank ymailto="mailto:foundry-nsp@puck.nether.net">foundry-nsp@puck.nether.net</A>><BR><B>Sent:</B> Thu, October 4, 2012 3:30:11 PM<BR><B>Subject:</B> Re: [f-nsp] Tagged interfaces</SPAN></P>
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<P class=MsoNormal>Hi Eric</P></DIV>
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<P class=MsoNormal>For the most part, yes to both.</P></DIV>
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<P class=MsoNormal>Take a look at this document here (pages 19 & 20): http://community.brocade.com/servlet/JiveServlet/previewBody/1848-102-1-3553/Brocade-Cisco%20Comparison.pdf</P></DIV>
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<P class=MsoNormal>Kind Regards,</P></DIV>
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<P class=MsoNormal><B>Josh Farrelly</B></P></DIV>
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<P class=MsoNormal><I>Infrastructure Architect, ICTS.</I></P></DIV>
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<P class=MsoNormal>Manukau Institute of Technology</P></DIV></DIV></DIV></DIV>
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<P class=MsoNormal><B><SPAN style="COLOR: black; FONT-SIZE: 11pt">From: </SPAN></B><SPAN style="COLOR: black; FONT-SIZE: 11pt">Eric A Louie <<A href="mailto:elouie@yahoo.com" rel=nofollow target=_blank ymailto="mailto:elouie@yahoo.com">elouie@yahoo.com</A>><BR><B>Date: </B>Friday, 5 October 2012 11:07 AM<BR><B>To: </B>"<A href="mailto:foundry-nsp@puck.nether.net" rel=nofollow target=_blank ymailto="mailto:foundry-nsp@puck.nether.net">foundry-nsp@puck.nether.net</A>" <<A href="mailto:foundry-nsp@puck.nether.net" rel=nofollow target=_blank ymailto="mailto:foundry-nsp@puck.nether.net">foundry-nsp@puck.nether.net</A>><BR><B>Subject: </B>[f-nsp] Tagged interfaces</SPAN></P></DIV>
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<P class=MsoNormal><SPAN style="COLOR: black; FONT-SIZE: 10pt">I'm preparing to translate some Foundry configurations to Cisco.</SPAN><SPAN style="COLOR: red; FONT-SIZE: 10pt"></SPAN></P></DIV>
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<P><SPAN style="COLOR: black; FONT-SIZE: 10pt">As far as I can tell, the tagged interfaces are really just 802.1q trunk ports. Is that an accurate assessment?</SPAN><SPAN style="COLOR: red; FONT-SIZE: 10pt"></SPAN></P>
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<P><SPAN style="COLOR: black; FONT-SIZE: 10pt">Foundry allows multiple IP addresses on the Ethernet interface. Do I have a choice to use vlan interfaces and/or Ethernet sub-interfaces on the Cisco to provide the same functionality?</SPAN><SPAN style="COLOR: red; FONT-SIZE: 10pt"></SPAN></P>
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<P class=MsoNormal><SPAN style="COLOR: red; FONT-SIZE: 10pt">Much appreciated,<BR>Eric Louie</SPAN></P>
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