Port-Priority 로드 분산

토폴로지

 

 

목표

포트 번호	forward 여부 [FWD]	BLK
fa1/1	vlan10에 대해서 RP	vlan20,30,40에 대해서 BLK
fa1/2	vlan20에 대해서 RP	vlan10,30,40에 대해서 BLK
fa1/3	vlan30에 대해서 RP	vlan10,20,40에 대해서 BLK
fa1/4	vlan40에 대해서 RP	vlan10,20,30에 대해서 BLK

 

 

S1/2/3/4 설정

S1: 10.1.10.1/24 [gw 10.1.10.254] conf t int fa 0/0 no shut ip add 10.1.10.1 255.255.255.0 mac 0001.0001.0001 exi ip route 0.0.0.0 0.0.0.0 10.1.10.254	S2: 10.1.20.1/24 [gw 10.1.20.254] conf t int fa 0/0 no shut ip add 10.1.20.1 255.255.255.0 mac 0002.0002.0002 exi ip route 0.0.0.0 0.0.0.0 10.1.20.254
S3: 10.1.30.1/24 [gw 10.1.30.254] conf t int fa 0/0 no shut ip add 10.1.30.1 255.255.255.0 mac 0003.0003.0003 exi ip route 0.0.0.0 0.0.0.0 10.1.30.254	S4: 10.1.40.1/24 [gw 10.1.40.254] conf t int fa 0/0 no shut ip add 10.1.40.1 255.255.255.0 mac 0004.0004.0004 exi ip route 0.0.0.0 0.0.0.0 10.1.40.254

DSW에서 생성할 SVI를 default gw로 지정한다.

show ip int b, show cdp nei, show ip route로 설정사항을 확인하자.

 

 

ASW설정 [access, trunk]

ASW vlan 10,20,30,40 exi int fa 1/11 sw mo a sw a v 10 exi int fa 1/12 sw mo a sw a v 20 exi int fa 1/13 sw mo a sw a v 30 exi int fa 1/14 sw mo a sw a v 40 exi

int rang fa 1/1 - 4 sw t e d sw m t exi spanning-tree vlan 10 root secondary spanning-tree vlan 20 root secondary spanning-tree vlan 30 root secondary spanning-tree vlan 40 root secondary

show vlan brief [show vlan-sw brief] / show int trunk / show cdp nei

show int status [connect, not connect, disable, err-disable]

show spanning-tree vlan 10 brief [20,30,40]

와 같은 명령어로 설정사항을 확인하자.

 

 

DSW routing = RIP

ip routing vlan 10,20,30,40,50 exi int vlan 10 no shut ip add 10.1.10.254 255.255.255.0 exi int vlan 20 no shut ip add 10.1.20.254 255.255.255.0 exi int vlan 30 no shut ip add 10.1.30.254 255.255.255.0 exi int vlan 40 no shut ip add 10.1.40.254 255.255.255.0 exi int vlan 50 no shut ip add 10.1.50.250 255.255.255.0 exi

int fa 1/0 sw mo a sw a v 50 exi router rip ver 2 no auto net 10.0.0.0 tim ba 1 6 0 8 exi

 

 

DSW [trunk 보안설정] - root bridge가 되어야 함

int rang fa 1/1 - 4 sw t e d sw m t exi spanning-tree vlan 10 root primary spanning-tree vlan 20 root primary spanning-tree vlan 30 root primary spanning-tree vlan 40 root primary

show vlan brief [show vlan-sw brief] / show int trunk / show int status / show cdp nei

와 같은 명령어로 설정사항을 확인하자.

 

 

GW - NAT, RIP [default 경로 전송]

int fa 0/1 no shut ip add 10.1.50.254 255.255.255.0 ip nat inside exi int fa 0/0 no shut ip add 1.1.12.1 255.255.255.0 ip nat out exi

access-list 1 permit 10.1.0.0 0.0.255.255 ip nat inside source list 1 int fa 0/0 over ip route 8.8.8.0 255.255.255.0 1.1.12.2 router rip ver 2 no auto net 10.0.0.0 tim ba 1 6 0 8 default-information originate

 

 

Internet 장비 설정

int fa 0/0 no shut ip add 1.1.12.2 255.255.255.0 exi

int lo 0 ip add 8.8.8.8 255.255.255.0 exi

 

 

 

확인

DSW show ip int b ping 10.1.50.254 show ip route rip

GW show ip route rip ping 8.8.8.8

S1 ping 10.1.10.254

S2 ping 10.1.20.254

S3 ping 10.1.30.254

S4 ping 10.1.40.254

ASW#show spanning-tree vlan 10 bri Interface Designated Name Port ID Prio Cost Sts Cost Bridge ID Port ID -------------------- ------- ---- ----- --- ----- -------------------- ------- FastEthernet1/1 128.42 128 19 FWD 0 8192 cc06.3660.0001 128.42 FastEthernet1/2 128.43 128 19 BLK 0 8192 cc06.3660.0001 128.43 FastEthernet1/3 128.44 128 19 BLK 0 8192 cc06.3660.0001 128.44 FastEthernet1/4 128.45 128 19 BLK 0 8192 cc06.3660.0001 128.45

ASW#show spanning-tree vlan 20 bri Name Port ID Prio Cost Sts Cost Bridge ID Port ID -------------------- ------- ---- ----- --- ----- -------------------- ------- FastEthernet1/1 128.42 128 19 FWD 0 8192 cc06.3660.0002 128.42 FastEthernet1/2 128.43 128 19 BLK 0 8192 cc06.3660.0002 128.43 FastEthernet1/3 128.44 128 19 BLK 0 8192 cc06.3660.0002 128.44 FastEthernet1/4 128.45 128 19 BLK 0 8192 cc06.3660.0002 128.45 FastEthernet1/12 128.53 128 19 FWD 19 16384 cc05.32ac.0002 128.53

ASW#show spanning-tree vlan 30 bri Name Port ID Prio Cost Sts Cost Bridge ID Port ID -------------------- ------- ---- ----- --- ----- -------------------- ------- FastEthernet1/1 128.42 128 19 FWD 0 8192 cc06.3660.0003 128.42 FastEthernet1/2 128.43 128 19 BLK 0 8192 cc06.3660.0003 128.43 FastEthernet1/3 128.44 128 19 BLK 0 8192 cc06.3660.0003 128.44 FastEthernet1/4 128.45 128 19 BLK 0 8192 cc06.3660.0003 128.45

ASW#show spanning-tree vlan 40 bri Name Port ID Prio Cost Sts Cost Bridge ID Port ID -------------------- ------- ---- ----- --- ----- -------------------- ------- FastEthernet1/1 128.42 128 19 FWD 0 8192 cc06.3660.0004 128.42 FastEthernet1/2 128.43 128 19 BLK 0 8192 cc06.3660.0004 128.43 FastEthernet1/3 128.44 128 19 BLK 0 8192 cc06.3660.0004 128.44 FastEthernet1/4 128.45 128 19 BLK 0 8192 cc06.3660.0004 128.45

DSW#show mac-address-table dynamic Non-static Address Table: Destination Address Address Type VLAN Destination Port 0001.0001.0001 Dynamic 10 FastEthernet1/1 0002.0002.0002 Dynamic 20 FastEthernet1/1 0003.0003.0003 Dynamic 30 FastEthernet1/1 0004.0004.0004 Dynamic 40 FastEthernet1/1

 

 

vlan별 port-priority를 이용한 로드분산 실시

root bridge에서 설정 해야 함 [DSW]

int fa 1/1 spanning-tree vlan 10 port-priority 0 ASW fa 1/1 -> vlan10에 대한 RP	int fa 1/2 spanning-tree vlan 20 port-priority 0 ASW fa 1/2 -> vlan20에 대한 RP
int fa 1/3 spanning-tree vlan 30 port-priority 0 ASW fa 1/3 -> vlan30에 대한 RP	int fa 1/4 spanning-tree vlan 40 port-priority 0 ASW fa 1/4 -> vlan40에 대한 RP

 

 

 

blk port 확인 [non root bridge인 ASW에서 BLK 확인]

ASW#show spanning-tree vlan 10 bri FastEthernet1/1 128.42 128 19 FWD 0 8192 cc06.3660.0001 0.42

ASW#show spanning-tree vlan 20 bri FastEthernet1/2 128.42 128 19 FWD 0 8192 cc06.3660.0001 0.42

ASW#show spanning-tree vlan 30 bri FastEthernet1/3 128.42 128 19 FWD 0 8192 cc06.3660.0001 0.42

ASW#show spanning-tree vlan 40 bri FastEthernet1/4 128.42 128 19 FWD 0 8192 cc06.3660.0001 0.42

 

 

 

S1,2,3,4에서 8.8.8.8로 ping 실시하고 DSW에서 mac 학습 확인