All very good but an easier route is to configure the ring numbers in hex; the router will give the decimal equivalents.
int tok 0 ring 16 source-bridge 0xf00 2 0x2f2 will appear as int tok 0 ring 16 source-bridge 3840 2 754 Fred. Kelly Cobean wrote: > > Bill, > Hex is equivalent to Base16 numbering. Decimal is really Base10 > numbering. Let's look at an example of Base10 numbering broken down into > it's components, then we'll tackle your examples.. > > The decimal number 4243 drawn out in Base10 is as follows: > (4x10^3) + (2x10^2) + (4x10^1) + (3x10^0) ... Let's do the math... > 4x1000 + 2x100 + 4x10 + 3x1 = 4243 > > Simple, right? So hex is exactly the same, except you use powers of 16 and > the letters A-F map to numbers 10-15 respectively. Let's do your > examples... > F00: > Fx16^2 + 0x16^1 + 0x16^0 ...Let's do the math... > 15x256 + 0x16 + 0x1 = 3840 ...Voila! Youve just converted Hex to > decimal. > > Now how does that give us the Ring/Bridge #'s?...First, you need to > understand that the Route Descriptor is broken down like this: > > RRRRRRRRRRRRBBBB, where R=Ring# and B=Bridge# > > Given that FOO in Binary is only 12 bits but the field above is 16 bits, we > have to pad the left side with 0's so as not to change the value (Though > it's not displayed this way.) This makes it 0x0F00. In binary, this is: > > 0x0F00 = 0000111100000000 This means that the Ring is 000011110000 and the > Bridge is 0000 when you break the fields apart. > Convert this binary back to decimal, you get Ring#=3840, Bridge#=0, (The > bridge bits set to all 0's means "the ring local to the destination). Valid > bridge #'s are 1-15. > > Your second example: > 2F2 = 0x02F2 = 0000001011110010 = Ring 000000101111 / Bridge 0010 = Ring# > 47/Bridge# 2 > > If you had a RIF that read 0810.02F2.0F00, then the RIF would translate to > this: > 0810(Routing control bits).Ring47/Bridge2.Ring3840/Bridge0(or ring local to > destination) > > Hope this helps. > > Kelly Cobean, CCNP, CCSA, ACSA, MCSE, MCP+I > Network Engineer > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > Mckenzie Bill > Sent: Thursday, March 14, 2002 9:02 AM > To: [EMAIL PROTECTED] > Subject: Hex to Decimal for the RD [7:38223] > > Could someone help me get a clear understanding of converting the hex number > to a nice decimal ring number or bridge number. > > Two examples that have me stumped are: > > F00 and 2f2. > > Thanks Everyone in advance. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38264&t=38223 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
