Juniper vs Cisco
Cisco is a market leader in networking device manufacturing domain but at the same time, Juniper is giving good competition in terms of technology with cost-effective products like routers & switches.
Following document compare between Cisco & Juniper devices. As well as basic technology implementation on these devices like Static Routing & VLAN Setup.
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Market Position
According to the market survey Gartner Report who is a leader in this domain of networking devices like routers & switches. As it is clear from the diagram of quadrants that Cisco is the leader but Juniper & Arista network is also an emerging leader in this domain. Especially in Datacenter environment, Arista is providing top-notch quality switches.
Products
Routers:
Cisco ISR (Integrated Service Router) Branch End Solution
Cisco ASR (Aggregated Service Router) Edge Solution
Cisco CSR (Cloud Service Router) Cloud Solution
Juniper MX Series Router
Cloud Series Router(vMX Series Router)
Cisco Switches
Access & Distribution Layer Switch –
Cisco Cat 2960
Cisco Cat 3560
Cisco Cat 3850
Some of the access layer switches comes with POE function and some of them doesn’t support it. POE stands for Power over Ethernet which require for devices like IP Phone & IP Camera
Distribution & Core Layer Switch-
Cisco Cat 4500 & 6800
These switches provides fault tolerance with redundant Power Supply unit & Supervisor Engine
Juniper Switches
Access Layer Switches
EX Series
Distribution Layer Switches
QFX Series
Now we have looked at different devices from Cisco & Juniper Networks. We will focus now on configuration of these devices for simple technologies like Static Routing & VLAN Setup
Configuration
Cisco Static Routing:
Scenario:
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How to set Hostname on Cisco 1841 Series Router
Router>enable
Router#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#hostname SP-RTR
SP-RTR(config)#
How to set Interface on Cisco 1841 Series Router
SP-RTR#conf t
Enter configuration commands, one per line. End with CNTL/Z.
SP-RTR(config)#int f0/0
SP-RTR(config-if)#ip add 192.168.1.1 255.255.255.0
SP-RTR(config-if)#no shutdown
SP-RTR(config-if)#
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
SP-RTR(config-if)#
SP-RTR(config)#int f0/1
SP-RTR(config-if)#ip add 12.0.0.1 255.0.0.0
SP-RTR(config-if)#no sh
SP-RTR(config-if)#
%LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up
SP-RTR(config-if)#end
SP-RTR#
%SYS-5-CONFIG_I: Configured from console by console
How to check Interface Setting From L1 L2 & L3 Perspective on Cisco 1841 Series Router
SP-RTR#show ip int brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.1.1 YES manual up up
FastEthernet0/1 12.0.0.1 YES manual up up
Vlan1 unassigned YES NVRAM administratively down down
SP-RTR#
Status ⇒ L1
Protocol ⇒ L2
IP-Address ⇒ L3
How to check the routing table
SP-RTR#show ip route
Codes: C – connected, S – static, I – IGRP, R – RIP, M – mobile, B – BGP D – EIGRP, EX – EIGRP external, O – OSPF, IA – OSPF inter area N1 – OSPF NSSA external type 1, N2 – OSPF NSSA external type 2 E1 – OSPF external type 1, E2 – OSPF external type 2, E – EGP i – IS-IS, L1 – IS-IS level-1, L2 – IS-IS level-2, ia – IS-IS inter area * – candidate default, U – per-user static route, o – ODR P – periodic downloaded static route
Gateway of last resort is not set
C 12.0.0.0/8 is directly connected, FastEthernet0/1
C 192.168.1.0/24 is directly connected, FastEthernet0/0
SP-RTR#
C ⇒ Means Directly Connected Route
So we have two connected routes and we need to add third route manually or statically i.e 192.168.2.0/24
How to set static routing
SP-RTR#conf t
Enter configuration commands, one per line. End with CNTL/Z.
SP-RTR(config)#ip route 192.168.2.0 255.255.255.0 12.0.0.2
SP-RTR(config)#end
SP-RTR#
%SYS-5-CONFIG_I: Configured from console by console
12.0.0.2 ⇒ is Next Hop Router Entry
Again Check Routing Table by following command,
SP-RTR#show ip route
Codes: C – connected, S – static, I – IGRP, R – RIP, M – mobile, B – BGP
D – EIGRP, EX – EIGRP external, O – OSPF, IA – OSPF inter area
N1 – OSPF NSSA external type 1, N2 – OSPF NSSA external type 2
E1 – OSPF external type 1, E2 – OSPF external type 2, E – EGP
i – IS-IS, L1 – IS-IS level-1, L2 – IS-IS level-2, ia – IS-IS inter area
* – candidate default, U – per-user static route, o – ODR
P – periodic downloaded static route
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Gateway of last resort is not set
C 12.0.0.0/8 is directly connected, FastEthernet0/1
C 192.168.1.0/24 is directly connected, FastEthernet0/0
S 192.168.2.0/24 [1/0] via 12.0.0.2
SP-RTR#
Admin Distance = 1 for Static Route
Detailed Comparison of Admin Distance is as follows
| Route | Cisco | Juniper |
| Connected | 0 | 0 |
| Static | 1 | 5 |
| EIGRP | 90 | Not Available |
| OSPF | 110 | 10 |
| IS-IS | 115 | 15 |
| RIP | 120 | 100 |
| BGP | 20 | 170 |
Same Scenario on Juniper VMX Series Routers
How to set Hostname & Password on Juniper VMX Router
VMX1 (ttyd0)
login: lab
Password:— JUNOS 14.1R1.10 built 2014-06-07 09:37:07 UTC
lab@VMX1> configure
Entering configuration mode
[edit]
lab@VMX1# edit system
[edit system]
lab@VMX1# set host-name VMX-1
[edit system]
lab@VMX1# set root-authentication plain-text-password
New password:
Retype new password:
[edit system]
lab@VMX1#
How to check & compare config before committing it device
lab@VMX1# top
[edit]
lab@VMX1# show | compare
[edit system]
– host-name VMX1;
+ host-name VMX-1;
[edit system root-authentication]
– encrypted-password “$1$iiqdh9ru$CBQygri2MkpfgtgdGo8GO1”; ## SECRET-DATA
+ encrypted-password “$1$fY2/xCZd$VsuQvLviJhYXAV1AyP4k20”; ## SECRET-DATA
[edit]
lab@VMX1# commit
commit complete
[edit]
lab@VMX-1#
How to set interface ip address in Juniper Devices
lab@VMX-1# edit interfaces
[edit interfaces]
lab@VMX-1# set ge-0/0/0 unit 0 family inet address 12.0.0.1/8
[edit interfaces]
lab@VMX-1# set ge-0/0/1 unit 0 family inet address 192.168.1.1/24
[edit interfaces]
lab@VMX-1# show | compare
[edit interfaces]
+ ge-0/0/0 {
+ unit 0 {
+ family inet {
+ address 12.0.0.1/8;
+ }
+ }
+ }
+ ge-0/0/1 {
+ unit 0 {
+ family inet {
+ address 192.168.1.1/24;
+ }
+ }
+ }
[edit interfaces]
lab@VMX-1#
- ⇒ Means this config going to be added in device
- ⇒ Means this config going to be removed in device in ACTIVE CONFIG
When we issue command that is part of DEFAULT CONFIG and after committing it will become ACTIVE CONFIG
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How to set Static Routing in Juniper VMX Router
lab@VMX-1# edit routing-options
[edit routing-options]
lab@VMX-1# set static route 192.168.2.0/24 next-hop 12.0.0.2
[edit routing-options]
lab@VMX-1# top
[edit]
lab@VMX-1# show | compare
[edit]
+ routing-options {
+ static {
+ route 192.168.2.0/24 next-hop 12.0.0.2;
+ }
+ }
[edit]
lab@VMX-1#
[edit]
lab@VMX-1# commit
commit complete
How to check Routing Table in Juniper VMX Router
lab@VMX-1# run show route
inet.0: 5 destinations, 5 routes (5 active, 0 holddown, 0 hidden)
+ = Active Route, – = Last Active, * = Both
12.0.0.0/8 *[Direct/0] 00:02:37
> via ge-0/0/0.0
12.0.0.1/32 *[Local/0] 00:02:38
Local via ge-0/0/0.0
192.168.1.0/24 *[Direct/0] 00:02:38
> via ge-0/0/1.0
192.168.1.1/32 *[Local/0] 00:02:38
Local via ge-0/0/1.0
192.168.2.0/24 *[Static/5] 00:00:07
> to 12.0.0.2 via ge-0/0/0.0
[edit]
lab@VMX-1#
Cisco Switch Catalyst 2960 Series Config Scenario:
For VLANs Setup
Admin Distance = 1 for Static Route
Detailed Comparison of Admin Distance is as follows
| Route | Cisco | Juniper |
| Connected | 0 | 0 |
| Static | 1 | 5 |
| EIGRP | 90 | Not Available |
| OSPF | 110 | 10 |
| IS-IS | 115 | 15 |
| RIP | 120 | 100 |
| BGP | 20 | 170 |
Same Scenario on Juniper VMX Series Routers
How to set Hostname & Password on Juniper VMX Router
VMX1 (ttyd0)
login: lab
Password:
— JUNOS 14.1R1.10 built 2014-06-07 09:37:07 UTC
lab@VMX1> configure
Entering configuration mode
[edit]
lab@VMX1# edit system
[edit system]
lab@VMX1# set host-name VMX-1
[edit system]
lab@VMX1# set root-authentication plain-text-password
New password:
Retype new password:
[edit system]
lab@VMX1#
How to check & compare config before committing it device
lab@VMX1# top
[edit]
lab@VMX1# show | compare
[edit system]
– host-name VMX1;
+ host-name VMX-1;
[edit system root-authentication]
– encrypted-password “$1$iiqdh9ru$CBQygri2MkpfgtgdGo8GO1”; ## SECRET-DATA
+ encrypted-password “$1$fY2/xCZd$VsuQvLviJhYXAV1AyP4k20”; ## SECRET-DATA
[edit]
lab@VMX1# commit
commit complete
[edit]
lab@VMX-1#
How set interface ip address in Juniper Devices
lab@VMX-1# edit interfaces
[edit interfaces]
lab@VMX-1# set ge-0/0/0 unit 0 family inet address 12.0.0.1/8
[edit interfaces]
lab@VMX-1# set ge-0/0/1 unit 0 family inet address 192.168.1.1/24
[edit interfaces]
lab@VMX-1# show | compare
[edit interfaces]
+ ge-0/0/0 {
+ unit 0 {
+ family inet {
+ address 12.0.0.1/8;
+ }
+ }
+ }
+ ge-0/0/1 {
+ unit 0 {
+ family inet {
+ address 192.168.1.1/24;
+ }
+ }
+ }
[edit interfaces]
lab@VMX-1#
- ⇒ Means this config going to be added in device
- ⇒ Means this config going to be removed in device in ACTIVE CONFIG
When we issue command that is part of DEFAULT CONFIG and after committing it will become ACTIVE CONFIG
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How to set Static Routing in Juniper VMX Router
lab@VMX-1# edit routing-options
[edit routing-options]
lab@VMX-1# set static route 192.168.2.0/24 next-hop 12.0.0.2
[edit routing-options]
lab@VMX-1# top
[edit]
lab@VMX-1# show | compare
[edit]
+ routing-options {
+ static {
+ route 192.168.2.0/24 next-hop 12.0.0.2;
+ }
+ }
[edit]
lab@VMX-1#
[edit]
lab@VMX-1# commit
commit complete
How to check Routing Table in Juniper VMX Router
lab@VMX-1# run show route
inet.0: 5 destinations, 5 routes (5 active, 0 holddown, 0 hidden)
+ = Active Route, – = Last Active, * = Both
12.0.0.0/8 *[Direct/0] 00:02:37
> via ge-0/0/0.0
12.0.0.1/32 *[Local/0] 00:02:38
Local via ge-0/0/0.0
192.168.1.0/24 *[Direct/0] 00:02:38
> via ge-0/0/1.0
192.168.1.1/32 *[Local/0] 00:02:38
Local via ge-0/0/1.0
192.168.2.0/24 *[Static/5] 00:00:07
> to 12.0.0.2 via ge-0/0/0.0
[edit]
lab@VMX-1#
Cisco Switch Catalyst 2960 Series Config Scenario:
For VLANs Setup
How to check VLAN
Switch>enable
Switch#show vlan brief
VLAN Name Status Ports
—- ——- ——- ——————————-
1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4,Fa0/5,
Fa0/6,Fa0/7, Fa0/8, Fa0/9, Fa0/10,
Fa0/11, Fa0/12, Fa0/13, Fa0/14,
Fa0/15, Fa0/16, Fa0/17, Fa0/18,
Fa0/19, Fa0/20, Fa0/21, Fa0/22,
Fa0/23, Fa0/24
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active
Switch#
How to create VLAN on Cisco 2960 Series Switch
Switch#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#vlan 10
Switch(config-vlan)#name IT
Switch(config-vlan)#exit
Switch(config)#vlan 20
Switch(config-vlan)#name HR
Switch(config-vlan)#exit
Switch(config)#
Switch#
Switch#show vlan brief
VLAN Name Status Ports
—- ——- ——- ——————————-
1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4,Fa0/5,
Fa0/6,Fa0/7, Fa0/8, Fa0/9, Fa0/10,
Fa0/11, Fa0/12, Fa0/13, Fa0/14,
Fa0/15, Fa0/16, Fa0/17, Fa0/18,
Fa0/19, Fa0/20, Fa0/21, Fa0/22,
Fa0/23, Fa0/24
10 IT active
20 HR active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active
Switch#
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How to assign ports to interfaces on Cisco 2960 Series Switch
Switch#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#int range f0/1-10
Switch(config-if-range)#switchport mode access
Switch(config-if-range)#switchport access vlan 10
Switch(config-if-range)#exit
Switch(config)#int range f0/11-20
Switch(config-if-range)#switchport mode access
Switch(config-if-range)#switchport access vlan 20
Switch(config-if-range)#
How to check VLAN on Cisco 2960 Series Switch
Switch#show vlan brief
VLAN Name Status Ports
—- ——- ——- ——————————-
1 default active Fa0/21, Fa0/22, Fa0/23, Fa0/24
10 IT active Fa0/1, Fa0/2, Fa0/3, Fa0/4,Fa0/5,
Fa0/6,Fa0/7, Fa0/8, Fa0/9, Fa0/10,
20 HR active Fa0/11, Fa0/12, Fa0/13, Fa0/14,
Fa0/15, Fa0/16, Fa0/17, Fa0/18,
Fa0/19, Fa0/20,
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active
Switch#
Juniper Switch EX2200 Series Config Scenario For VLANs Setup:
How to set Vlans in Juniper Ex Series Switches
lab@EX-Switch>configure
lab@EX-Switch#edit vlans
[edit vlans]
lab@EX-Switch#set IT vlan-id 10
[edit vlans]
lab@EX-Switch#set HR vlan-id 20
lab@EX-Switch#top
How to set interfaces to VLANs in Juniper Ex Series Switches
lab@EX-Switch#edit interfaces
[edit interfaces]
lab@EX-Switch#set interfaces ge-0/0/0 unit 0 family ethernet-switching vlan members IT
[edit interfaces]
lab@EX-Switch#set interfaces ge-0/0/11 unit 0 family ethernet-switching vlan members HR
How to check VLANs in Juniper Ex Series Switches
lab@EX-Switch>show vlan
Name Tag Interfaces
default ge-0/0/0.0,ge-0/0/1.0,ge-0/0/2.0,…
mgmt me0.0
After Config of VLANs
lab@EX-Switch>show vlan
Name Tag Interfaces
default ge-0/0/0.0,ge-0/0/2.0,…
mgmt me0.0
IT 10 ge-0/0/1.0
HR 20 ge-0/0/11.0
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Inter VLAN Routing on Cisco Devices
For inter VLAN routing in this scenario we have to make interface fast ethernet 0/24 as TRUNK port as follows
SW-2960>en
SW-2960#conf t
Enter configuration commands, one per line. End with CNTL/Z.
SW-2960(config)#int f0/24
SW-2960(config-if)#switchport mode trunk
SW-2960(config-if)#end
SW-2960#
%SYS-5-CONFIG_I: Configured from console by console
Similarly we have to make interface fast ethernet 0/24 as TRUNK port on Cisco 3560 Series Switch (Upper Switch in diagram) as follows
SW-3560#conf t
Enter configuration commands, one per line. End with CNTL/Z.
SW-3560(config)#int f0/24
SW-3560(config-if)#switchport trunk encapsulation dot1q
SW-3560(config-if)#switchport mode trunk
SW-3560(config-if)#end
SW-3560#
After That we have to verify that the Trunk is ready or not by following command
On Cisco Switches
SW-3560#sh int trunk
Port Mode Encapsulation Status Native vlan
Fa0/24 on 802.1q trunking 1
Port Vlans allowed on trunk
Fa0/24 1,10,20
Port Vlans allowed and active in management domain
Fa0/24 1,10,20
Port Vlans in spanning tree forwarding state and not pruned
Fa0/24 1,10,20
SW-3560#
Then we have to ensure required VLANs (in our case VLAN 10 & VLAN20) are available on L3 Switch
SW-3560#sh vlan brief
VLAN Name Status Ports
—- ——— ——— ——————————-
1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4
Fa0/5, Fa0/6, Fa0/7, Fa0/8
Fa0/9, Fa0/10, Fa0/11, Fa0/12
Fa0/13, Fa0/14, Fa0/15, Fa0/16
Fa0/17, Fa0/18, Fa0/19, Fa0/20
Fa0/21, Fa0/22, Fa0/23, Gig0/1
Gig0/2
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active
SW-3560#
As VLANs are not ready we have to create VLANs manually as follows on L3 Switch i.e 3560 Series Cisco Switch
SW-3560>en
SW-3560#conf t
Enter configuration commands, one per line. End with CNTL/Z.
SW-3560(config)#vlan 10
SW-3560(config-vlan)#name IT
SW-3560(config-vlan)#exit
SW-3560(config)#vlan 20
SW-3560(config-vlan)#name HR
SW-3560(config-vlan)#exit
SW-3560(config)#end
SW-3560#
%SYS-5-CONFIG_I: Configured from console by console
Then we have to check VLANs again on L3 Switch i.e 3560 Series Cisco Switch
SW-3560#sh vlan brief
VLAN Name Status Ports
—- ——— ——— ——————————-
1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4
Fa0/5, Fa0/6, Fa0/7, Fa0/8
Fa0/9, Fa0/10, Fa0/11, Fa0/12
Fa0/13, Fa0/14, Fa0/15, Fa0/16
Fa0/17, Fa0/18, Fa0/19, Fa0/20
Fa0/21, Fa0/22, Fa0/23, Gig0/1
Gig0/2
10 IT
20 HR
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active
SW-3560#
Then we have to create SVI i.e Switch Virtual Interface as follows on L3 Switch i.e 3560 Series Cisco Switch
SW-3560#
SW-3560#conf t
Enter configuration commands, one per line. End with CNTL/Z.
SW-3560(config)#int vlan 10
SW-3560(config-if)#ip add 192.168.10.1 255.255.255.0
SW-3560(config-if)#exit
SW-3560(config)#int vlan 20
SW-3560(config-if)#ip add 192.168.20.1 255.255.255.0
SW-3560(config-if)#exit
SW-3560(config)#end
SW-3560#
%SYS-5-CONFIG_I: Configured from console by console
SW-3560#
Then we have to Verify SVI i.e Switch Virtual Interface as follows on L3 Switch i.e 3560 Series Cisco Switch
SW-3560#show ip int brief | include up
Interface IP-Address OK? Method Status Protocol
Vlan1 192.168.1.102 YES manual up up
Vlan10 192.168.10.1 YES manual up up
Vlan20 192.168.20.1 YES manual up up
Then check IP routing table as follows
SW-3560#show ip route
Codes: C – connected, S – static, I – IGRP, R – RIP, M – mobile, B – BGP
D – EIGRP, EX – EIGRP external, O – OSPF, IA – OSPF inter area
N1 – OSPF NSSA external type 1, N2 – OSPF NSSA external type 2
E1 – OSPF external type 1, E2 – OSPF external type 2, E – EGP
i – IS-IS, L1 – IS-IS level-1, L2 – IS-IS level-2, ia – IS-IS inter area
* – candidate default, U – per-user static route, o – ODR
P – periodic downloaded static route
Gateway of last resort is not set
C 192.168.1.0/24 is directly connected, Vlan1
C 192.168.10.0/24 is directly connected, Vlan10
C 192.168.20.0/24 is directly connected, Vlan20
SW-3560#
Once we have routing table ready we have done with all required config
Now set the same thing on Juniper EX2300 Series Switch we have follow, following approach,
To set inter VLAN routing by using routed VLAN interfaces (RVI), perform the following procedure:
set a layer 2 VLAN:
lab@EX-2200# set vlans IT vlan-id 10
lab@EX-2200# set vlans HR vlan-id 20
set a logical layer 3 VLAN interface:
lab@EX-2200# set interfaces vlan unit 10 family inet address 192.168.10.1/24
lab@EX-2200# set interfaces vlan unit 20 family inet address 192.168.20.1/24
Link the layer 2 VLAN to the layer 3 VLAN interface:
lab@EX-2200# set vlans IT l3-interface vlan.10
lab@EX-2200# set vlans HR l3-interface vlan.20
To Check if the logical VLAN interface is up, use the following command:
lab@EX-2200> show interfaces terse
vlan.10 up up inet 192.168.10.1/24
vlan.20 up up inet 192.168.20.1/24
Note: At least one port (access or trunk) with the VLAN assigned to it must be ‘up’ for the layer 3 VLAN interface to be up.
To check the routes via the logical VLAN interfaces, use the following command:
lab@EX-2200> show route
192.168.10.0/24 *[Direct/0] 1d 01:16:45
> via vlan.10
192.168.10.1/32 *[Local/0] 1d 01:16:45
Local via vlan.10
192.168.20.0/24 *[Direct/0] 1d 01:16:45
> via vlan.20
192.168.20.1/32 *[Local/0] 1d 01:16:45
Local via vlan.20
Summary
As a network engineer or student looking for a job in networking domain should equip themselves with these two leading technologies & in turn that will improve employability & job satisfaction.
Author:
Samir Maniyar
Networking Trainer
Tools Used
- Cisco Packet Tracer
- UNL for Juniper Lab with Juniper vMX Router with JunOS 14 Version
References
- For Juniper- JunOS for Dummies Written By Walter Goralski
- For Cisco- Cisco CCNA Cert Guide Written By Wendel Odum
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