Re: VLANs, Cisco Catalyst 5500 (CatOS) and a Realtek 8100 series

after I sent that, I realized that it made no sense. I'm testing
something out right now though, so I'll send an update after this.


On Sun, 20 Mar 2005 21:36:20 -0800, Derek Fedel <[email protected]> wrote:
> Some other information. to me, it looks as though the vlan encap is
> set to 1q.. I'll check into the eepro card though. Any other ideas
> maybe?
> 
> VLAN Name                             Status    IfIndex Mod/Ports, Vlans
> ---- -------------------------------- --------- ------- ------------------------
> 1    default                          active    5
> 2    VLAN0002                         active    826
> 3    VLAN0003                         active    828     3/3-24
>                                                         4/1-24
>                                                         5/1-24
>                                                         6/1-24
>                                                         7/1-24
>                                                         8/1-24
>                                                         9/1-24
>                                                         10/1-24
>                                                         11/1-24
>                                                         12/1-24
> 1002 fddi-default                     active    6
> 1003 token-ring-default               active    9
> 1004 fddinet-default                  active    7
> 1005 trnet-default                    active    8
> 
> VLAN Type  SAID       MTU   Parent RingNo BrdgNo Stp  BrdgMode Trans1 Trans2
> ---- ----- ---------- ----- ------ ------ ------ ---- -------- ------ ------
> 1    enet  100001     1500  -      -      -      -    -        0      0
> 2    enet  100002     1500  -      -      -      -    -        0      0
> 3    enet  100003     1500  -      -      -      -    -        0      0
> 1002 fddi  101002     1500  -      -      -      -    -        0      0
> 1003 trcrf 101003     1500  -      -      -      -    -        0      0
> 1004 fdnet 101004     1500  -      -      -      -    -        0      0
> 1005 trbrf 101005     1500  -      -      -      ibm  -        0      0
> 
> VLAN DynCreated  RSPAN
> ---- ---------- --------
> 1    static     disabled
> 2    static     disabled
> 3    static     disabled
> 1002 static     disabled
> 1003 static     disabled
> 1004 static     disabled
> 1005 static     disabled
> 
> VLAN AREHops STEHops Backup CRF 1q VLAN
> ---- ------- ------- ---------- -------
> 1003 7       7       off
> 
> adm.2  VID: 2    REORDER_HDR: 1  dev->priv_flags: 1
>          total frames received         3058
>           total bytes received       262343
>       Broadcast/Multicast Rcvd          104
> 
>       total frames transmitted         1060
>        total bytes transmitted       107868
>             total headroom inc            0
>            total encap on xmit         1060
> Device: adm
> INGRESS priority mappings: 0:0  1:0  2:0  3:0  4:0  5:0  6:0 7:0
> EGRESSS priority Mappings:
> istanbul:~# cat /proc/net/vlan/int.3
> int.3  VID: 3    REORDER_HDR: 1  dev->priv_flags: 1
>          total frames received            0
>           total bytes received            0
>       Broadcast/Multicast Rcvd            0
> 
>       total frames transmitted         3805
>        total bytes transmitted       175030
>             total headroom inc            0
>            total encap on xmit         3669
> Device: int
> INGRESS priority mappings: 0:0  1:0  2:0  3:0  4:0  5:0  6:0 7:0
> EGRESSS priority Mappings:
> 
> * - indicates vtp domain mismatch
> Port      Mode         Encapsulation  Status        Native vlan
> --------  -----------  -------------  ------------  -----------
>  3/1      on           dot1q          trunking      3
>  3/2      on           dot1q          trunking      2
> 
> Port      Vlans allowed on trunk
> --------  ---------------------------------------------------------------------
>  3/1      1,3
>  3/2      2
> 
> Port      Vlans allowed and active in management domain
> --------  ---------------------------------------------------------------------
>  3/1      1,3
>  3/2      2
> 
> Port      Vlans in spanning tree forwarding state and not pruned
> --------  ---------------------------------------------------------------------
>  3/1      1,3
>  3/2      2
> 
> 
> On Mon, 21 Mar 2005 05:57:13 +0100, Peter Stuge <[email protected]> wrote:
> > On Sun, Mar 20, 2005 at 08:46:47PM -0800, Derek Fedel wrote:
> > > The NIC connected to the switch is a Realtek 8100 series that I
> > > believe should support the extra MTU size (8139too driver)
> >
> > It will, but I would suggest getting an Intel card instead, they
> > don't cost a lot and are higher quality cards. Use the e100 or e1000
> > driver in the kernel though, not the old eepro100 driver.
> >
> >
> > > Its odd, I set up the vlans I want on the switch, set up the
> > > trunking on the port that the firewall is connected to, and vconfig
> > > the vlans to the interface on the firewall, but once I bring the
> > > vlan'd interface up, it will transmit packets, but not actually
> > > receive anything except for what tcpdump identifies as "Unknown IPX
> > > packets". hooray. Anyone have any ideas? I'll be glad to supply
> > > more information if need be. I suspect an MTU issue, but I'm not
> > > too sure.
> >
> > Is trunking specifically set to use dot1q? If not, I believe Cisco
> > prefers their own trunking protocol ISL, which is incompatible with
> > 802.1Q.
> >
> > //Peter
> > _______________________________________________
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> > [email protected]
> > http://www.lanforge.com/mailman/listinfo/vlan
> >
>