From: Joseph Ezerski (jezerski@xxxxxxxxxxxx)
Date: Thu Aug 02 2001 - 17:21:29 GMT-3
Peter:
Let me see if I can answer your questions. I work alot with 6509s but with
MSFCs instead of MSMs.
things you are worrried about:
1) Need for user pc to be able to get ip address from DHCP server.
-Well, as long as you have a local DHCP server or use the ip helper-add
ress
in your MSM, you should be fine.
2) Need for user pc to be able to get resolution for WINS and DNS server
-If you set your DHCP server to hand out DNS and WINS entries, you will
be
fine.
3) Need for users to get to Novell server
-Make sure you set the ethernet encapsulation (802.2, 802.3, Espec-2,
etc.)on router and Novell server to be the same! Cisco default is Espec-2.
4) Should every vlan use the two 6509 and primary and secondary root bridge?
-Not quite sure how you are fully set up, but I recommend that you use
the
6509s as your root and secondary root bridges. They are your best boxes.
Since all inter-vlan traffic has to go that way anyway to get to the MSMs.
If you have all Cisco switches, they all can do PVST. If you really want to
be clever with your spanning tree, look into MIST.
5) Should all the uplink from the 4003 to both 6509 be trunks
-If you want all vlans to be available to all switches, then you have t
o
trunk.
6) I need load balancing between the 2 6509 what config should I add
-If you want to load balance at layer 2, then vary who the root bridge
is
for your VLANs. To load balance at layer 3, use HSRP and vary who is the
primary across all of your VLANs. Of course, this assumes you have each
Cat4000 dual trunked, one to each 6509.
7) Should all 4003 be vtp server/transparent/client? Which option is better
for my situation?
I recommend setting your 6509s to both be VTP servers and everything else a
client. This way, if one 6509 fails, the other server can still propagate
VTP information.
A few other notes. I recommend not putting your management in VLAN 1. Move
it to another VLAN. As far as a config for all of this goes, it would take
too long to do it here. Go out and buy Cisco Press book called Cisco LAN
Switching by Clark and Hamilton. It is the best book I have seen that talks
about switching. But for basic inter-vlan routing, creating the VLAN
interface on your MSM and setting the ip address will get you started. The
MSM will know about all directly attached networks.
-Joe
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
peter brown
Sent: Thursday, August 02, 2001 6:27 PM
To: ccielab@groupstudy.com
Subject: routing btween vlan with MSM
Hello,
Background information.
1)create 6 vlan and route between the vlans
2)21 cat4003 in the closet fiber uplink to 2 6509 with msm
3)use the 2 cat6509 MSM for layer 3
4)Management & control traffic belong to compus-wide VLAN1(good or bad
idea)on all
21 closet 4003
6509 MSM config
interface port-channel1
interface port-channel1.1
encap dot1q 1
ip address 10.1.18.34 255.255.0.0
ip helper-address 10.1.4.12 (should this be the ip of the dhcp server)
interface port-channel1.2
encap dot1q 2
ip address 10.1.18.35 255.255.0.0
ip helper-address 10.1.4.12 (should this be the ip of the dhcp server)
interface port-channel1.3
encap dot1q 3
ip address 10.1.18.36 255.255.0.0
ip helper-address 10.1.4.12 (should this be the ip of the dhcp server)
interface port-channel1.4
encap dot1q 4
ip address 10.1.18.37 255.255.0.0
ip helper-address 10.1.4.12 (should this be the ip of the dhcp server)
interface port-channel1.5
encap dot1q 5
ip address 10.1.18.38 255.255.0.0
ip helper-address 10.1.4.12 (should this be the ip of the dhcp server)
interface port-channel1.6
encap dot1q 6
ip address 10.1.18.39 255.255.0.0
ip helper-address 10.1.4.12 (should this be the ip of the dhcp server)
interface gigabitethernet0/0/0
channel-group 1
interface gigabitethernet1/0/0
channel-group 1
interface gigabitethernet3/0/0
channel-group 1
interface gigabitethernet4/0/0
channel-group 1
end
things I am worrried about.
1) Need for user pc to be able to get ip address from DHCP server
2) Need for user pc to be able to get resolution for WINS and DNS server
3) Need for users to get to Novell server
4) Should every vlan use the two 6509 and primary and secondary root bridge?
I am confused about this since I have multiple vlans
5) Should all the uplink from the 4003 to both 6509 be trunks
6) I need load balancing between the 2 6509 what config should I add
7) Should all 4003 be vtp server/transparent/client? Which option is better
for
my situation?
What addition config shuld I add to accomplish the above.
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