John Neiberger wrote: > > In older IOS versions you had a limited number of Interface Descriptor > Blocks, or IDBs. On our 7513 using an RSP4 I believe the limit was 300 > or so, which is pretty easy to run up against if you try. :-) > > In newer IOS releases--I think after 12.0--the limit was raised to over > 1000, if I remember right. Regardless, it's more than we'll ever use > here.
Here is how you can find the IDB answer: C7507MIX#sh idb Maximum number of IDBs 2048 25 SW IDBs allocated (2432 bytes each) 17 HW IDBs allocated (4216 bytes each) HWIDB#1 1 ATM0/1/0 (HW IFINDEX, HW ATM) HWIDB#2 2 ATM1/0/0 (HW IFINDEX, HW ATM) HWIDB#3 3 Ethernet4/0/0 (HW IFINDEX, Ether) HWIDB#4 4 Ethernet4/0/1 (HW IFINDEX, Ether) HWIDB#5 5 Ethernet4/0/2 (HW IFINDEX, Ether) HWIDB#6 6 Ethernet4/0/3 (HW IFINDEX, Ether) HWIDB#7 7 Ethernet4/0/4 (HW IFINDEX, Ether) HWIDB#8 8 Ethernet4/0/5 (HW IFINDEX, Ether) HWIDB#9 9 Ethernet4/0/6 (HW IFINDEX, Ether) HWIDB#10 10 Ethernet4/0/7 (HW IFINDEX, Ether) HWIDB#11 11 Serial4/1/0 (HW IFINDEX, Serial) HWIDB#12 12 Serial4/1/1 (HW IFINDEX, Serial) HWIDB#13 13 Serial4/1/2 (HW IFINDEX, Serial) HWIDB#14 14 Serial4/1/3 (HW IFINDEX, Serial) HWIDB#15 15 Loopback0 (HW IFINDEX) HWIDB#16 16 Loopback10 (HW IFINDEX) HWIDB#17 17 Loopback100 (HW IFINDEX) > > HTH, > John > > >>> "Maccubbin, Duncan" 12/7/01 12:32:24 > PM >>> > I have to disagree here. We had a fairly loaded 7200 fail due to having > too > many sub-interfaces. I dug around on Cisco's site and found a document > that > broke down the amount of memory each sub-interface used. (no, I can't > find > it now) We actually got quite a few more than they had it rated for > but > there are memory concerns all the same. If your 2600 doesn't have a lot > of > memory it will be limited. How many sub-interfaces you talking about? > How > much memory does the box have? You may want to consult Cisco if you > are > going over 50 or so. Just my $0.02. > > Duncan > > -----Original Message----- > From: MADMAN [mailto:[EMAIL PROTECTED]] > Sent: Friday, December 07, 2001 2:00 PM > To: [EMAIL PROTECTED] > Subject: Re: # of VLANs [7:28425] > > I take part of that back, there is an IDB limit but I'm sure your not > looking at serveral hundred subinterfaces are you?!? > > dave > > NetEng wrote: > > > > How many sub-interfaces can I create for VLAN routing on a router, > lets > say > > a 2600 series? I can't find anything at cisco. > -- > David Madland > Sr. Network Engineer > CCIE# 2016 > Qwest Communications Int. Inc. > [EMAIL PROTECTED] > 612-664-3367 > > "Emotion should reflect reason not guide it" -- David Madland Sr. Network Engineer CCIE# 2016 Qwest Communications Int. Inc. [EMAIL PROTECTED] 612-664-3367 "Emotion should reflect reason not guide it" Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=28456&t=28425 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
