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Small- and Mid-Sized Campus Networks
On small- and mid-sized networks, S2700&S3700 switches are deployed at the
access layer, S5700&S6700 switches are deployed at the core layer, and an AR
series router works as the egress router.
The core switches run
VRRP
to ensure reliability and
load balance
traffic to
effectively use resources.
On an access switch, each department has a
VLAN
allocated so that services are
separated by VLANs. Configuring
VLANIF interfaces
on the core switches
implements Layer 3 communication between different departments.
The core switches function as
DHCP servers
to allocate IP addresses to user
devices on the campus network.
Configuring
DHCP snooping
on the access switches prevents intranet users from
connecting a small router to the intranet to allocate IP addresses. Configuring
IPSG
on the access switches prevents intranet users from changing IP addresses.
This section uses the
S2750
as an access switch
(ACC1)
,
S5700
as a core switch
(CORE)
, and an
AR
series
router as an egress
router
(Router)
as examples to demonstrate the configuration
procedure for small- and mid-sized campus networks.
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