Re: [AFMUG] reusing vlan IDs
I decided to use the last octet of the connecting subnet ID, it adds another layer of complexity, but probably avoids some future disaster. Ill probably regret doing this down the road when we his 723 million customers On Mon, Jul 6, 2015 at 11:50 AM, Shayne Lebrun wrote: > On Mikrotik, if you put vlan 40, say, on interface 1, 2, 3, 4 and 5, but > don’t actually bridge any of them together, or trunk them on layer 2, > they’ll never see each other. > > > > *From:* Af [mailto:af-boun...@afmug.com] *On Behalf Of *Bill Prince > *Sent:* Monday, July 6, 2015 12:20 PM > *To:* af@afmug.com > *Subject:* Re: [AFMUG] reusing vlan IDs > > > > On a MT? > > AFAIK, the VLANs on one port are not connected to the VLANs on another > port. In other words, each VLAN is like a new port. > > You could then bridge ether1-VLANxyz to ether2-VLANxyz if you were so > inclined. > > > bp > > > > > > On 7/6/2015 9:12 AM, That One Guy /sarcasm wrote: > > Will I break the internet of things of I reuse the same vlan ID on > multiple ports > > > > This is solely for simplified deployment of site routers since it turns > out I need my OSPF subnets on vlans so I dont have to keep track of a > billion vlan IDs as well as a billion /30s > > > > The ports would not be bridged, just share a VLAN ID > > > > I assume this is a big No No, more curious on the impact of doing so > > > > -- > > If you only see yourself as part of the team but you don't see your team > as part of yourself you have already failed as part of the team. > > > -- If you only see yourself as part of the team but you don't see your team as part of yourself you have already failed as part of the team.
Re: [AFMUG] reusing vlan IDs
On Mikrotik, if you put vlan 40, say, on interface 1, 2, 3, 4 and 5, but don’t actually bridge any of them together, or trunk them on layer 2, they’ll never see each other. From: Af [mailto:af-boun...@afmug.com] On Behalf Of Bill Prince Sent: Monday, July 6, 2015 12:20 PM To: af@afmug.com Subject: Re: [AFMUG] reusing vlan IDs On a MT? AFAIK, the VLANs on one port are not connected to the VLANs on another port. In other words, each VLAN is like a new port. You could then bridge ether1-VLANxyz to ether2-VLANxyz if you were so inclined. bp On 7/6/2015 9:12 AM, That One Guy /sarcasm wrote: Will I break the internet of things of I reuse the same vlan ID on multiple ports This is solely for simplified deployment of site routers since it turns out I need my OSPF subnets on vlans so I dont have to keep track of a billion vlan IDs as well as a billion /30s The ports would not be bridged, just share a VLAN ID I assume this is a big No No, more curious on the impact of doing so -- If you only see yourself as part of the team but you don't see your team as part of yourself you have already failed as part of the team.
Re: [AFMUG] reusing vlan IDs
Technically, you can get away with this... However in terms of best practices, it is not advisable (in many cases, these vlans are going to get connected to other non-mikrotik devices, and as such they may or may not be able to distinguish between them..) If you are going to do this, at the very least document the vlan id's to include the port #. Faisal Imtiaz Snappy Internet & Telecom 7266 SW 48 Street Miami, FL 33155 Tel: 305 663 5518 x 232 Help-desk: (305)663-5518 Option 2 or Email: supp...@snappytelecom.net - Original Message - > From: "That One Guy /sarcasm" > To: af@afmug.com > Sent: Monday, July 6, 2015 12:28:24 PM > Subject: Re: [AFMUG] reusing vlan IDs > yes MT > For the most part I couldnt see a time I would want to bridge the ports. > Just something simple like saying VLAN ID 255 is reserved on the network for > the router to router OSPF communications. the third octet of the VLAN IDs is > always 255 so it would keep it uniform for remembering. The 4th octet is our > site ID, I could use a combination of site IDs to each link, but then you > run into a monkey trying to figure out which id is first and which is > second, then they get confused and start clicking things, then it becomes a > click orgy. next thing you know theyre at the command line with a browser > window open googling things to type, then I end up with router herpes. > On Mon, Jul 6, 2015 at 11:20 AM, Bill Prince < part15...@gmail.com > wrote: > > On a MT? > > > AFAIK, the VLANs on one port are not connected to the VLANs on another > > port. > > In other words, each VLAN is like a new port. > > > You could then bridge ether1-VLANxyz to ether2-VLANxyz if you were so > > inclined. > > > bp > > > > > > On 7/6/2015 9:12 AM, That One Guy /sarcasm wrote: > > > > Will I break the internet of things of I reuse the same vlan ID on > > > multiple > > > ports > > > > > > This is solely for simplified deployment of site routers since it turns > > > out > > > I > > > need my OSPF subnets on vlans so I dont have to keep track of a billion > > > vlan > > > IDs as well as a billion /30s > > > > > > The ports would not be bridged, just share a VLAN ID > > > > > > I assume this is a big No No, more curious on the impact of doing so > > > > > > -- > > > > > > If you only see yourself as part of the team but you don't see your team > > > as > > > part of yourself you have already failed as part of the team. > > > > -- > If you only see yourself as part of the team but you don't see your team as > part of yourself you have already failed as part of the team.
Re: [AFMUG] reusing vlan IDs
yes MT For the most part I couldnt see a time I would want to bridge the ports. Just something simple like saying VLAN ID 255 is reserved on the network for the router to router OSPF communications. the third octet of the VLAN IDs is always 255 so it would keep it uniform for remembering. The 4th octet is our site ID, I could use a combination of site IDs to each link, but then you run into a monkey trying to figure out which id is first and which is second, then they get confused and start clicking things, then it becomes a click orgy. next thing you know theyre at the command line with a browser window open googling things to type, then I end up with router herpes. On Mon, Jul 6, 2015 at 11:20 AM, Bill Prince wrote: > On a MT? > > AFAIK, the VLANs on one port are not connected to the VLANs on another > port. In other words, each VLAN is like a new port. > > You could then bridge ether1-VLANxyz to ether2-VLANxyz if you were so > inclined. > > bp > > > > On 7/6/2015 9:12 AM, That One Guy /sarcasm wrote: > > Will I break the internet of things of I reuse the same vlan ID on > multiple ports > > This is solely for simplified deployment of site routers since it turns > out I need my OSPF subnets on vlans so I dont have to keep track of a > billion vlan IDs as well as a billion /30s > > The ports would not be bridged, just share a VLAN ID > > I assume this is a big No No, more curious on the impact of doing so > > -- > If you only see yourself as part of the team but you don't see your > team as part of yourself you have already failed as part of the team. > > > -- If you only see yourself as part of the team but you don't see your team as part of yourself you have already failed as part of the team.
Re: [AFMUG] reusing vlan IDs
On a MT? AFAIK, the VLANs on one port are not connected to the VLANs on another port. In other words, each VLAN is like a new port. You could then bridge ether1-VLANxyz to ether2-VLANxyz if you were so inclined. bp On 7/6/2015 9:12 AM, That One Guy /sarcasm wrote: Will I break the internet of things of I reuse the same vlan ID on multiple ports This is solely for simplified deployment of site routers since it turns out I need my OSPF subnets on vlans so I dont have to keep track of a billion vlan IDs as well as a billion /30s The ports would not be bridged, just share a VLAN ID I assume this is a big No No, more curious on the impact of doing so -- If you only see yourself as part of the team but you don't see your team as part of yourself you have already failed as part of the team.
