As a technical consultant worked for 3Anetwork, frequently being asked
questions about Cisco IOS software applicating.Here, I gathered them,having
been given official explanation which I offered are as follows:
Q: If I need re-purchase the authorization after upgrading IOS for my Cisco
2911/k9 router, which have had authorized license?
A: My answer is No. Your previously authorization will be
automatically activated. No need to worry about that.
Q: How to outcrop the latest version of IOS for a exact Cisco switch?
A:The first method: Open the Cisco official website, choose the
“product” in “products and services” (if it is a router, “routers”, if a switch
to select the “switches”), after entering, select the “device”, click the
“device for more information”. The bottom is the software versions list of the
Cisco,including whatever IOS version you are searching for.
So, doubt’s coming: From whom can we
purchase original Cisco license, with competitive price, huge stock, fast
delivery. We 3Anetwork, as a a leading Global provider of Cisco networking
products, delivers original whether paper or electronic license through E-mail,
fasting our delivery. This would avoid several unexpected situations --
previously authorization expire for example, offering a more simplified capital
chain management. Our hot sale license include L-C3750X-48-L-E
for LAN base to IP services, L-C3750X-48-L-S
for LAN base to IP base, L-C3750X-48-S-E
for IP base to IP services.
Q: How to chose IOS version for my Cisco 2921 router?
A: Cisco IOS software named general consists of five parts:
AAAAA-BBBB-CC-DDDD.EE
AAAAA this group of characters which is the
documentation of the applicable hardware platform, BBBB which is a
characteristic of this group of characters included in the IOS, CC this group
of characters is IOS file format, DDDD This group of characters is noted IOS
software version, EE this is IOS file suffix. A characteristic of BBBB strings
often see are:
a Advanced Peer-to-Peer Networking
(APPN) feature
Boot boot image
j business
i IP
ipbase IP BASE
i3 simplified IP, no BGP, EBP, NHRP
i5 with VoFR of IP
k8 IPSec 56
k9 IPSec 3DES
o IOS Firewall
o3 with intrusion detection system IDS,
SSH firewall
p plus
s plus (NAT, IBM, VPDN, VoIP)
v VIP
v5 VoIP
x3 voice
If you just do the routing protocol
configuration experiments, c3640-i-mz.123-5a.bin is enough. If you need to do
encryption, firewalls or vpn aspect, we need to choose to support the specific
features of IOS files.
Q: How is the Cisco IOS-XE Software architecture structured?
A: The framework of next-generation Cisco IOS-XE Software is internally
distributed into major subcomponents. To design a scalable software
architecture, each Cisco IOS-XE Software subcomponent handles unique tasks such
as core applications (Cisco IOSd Software), integrated applications (WCM,
Wireshark, and so on), Common Management Interface (syslog, HTTP, and so on),
distributed forwarding manager, and so on.
Q: What are the high-availability(HA) states of Cisco IOSd Software
running on the different switches in a stack?
A: The state of Cisco IOSd Software on each system is unique:
●
Active: This Cisco IOSd Software is fully operational on the active switch. All
management planes, Layer 2/3 control planes, and integrated WCMs function from
this system.
●
Hot standby: The Cisco IOSd Software is in hot standby state on the standby
switch. To enable 1+1 stateful redundancy, the active switch synchronizes the
network protocol state machines, wireless CAPWAP tunnel states, and so on in
real time.
●
Cold: All primary software components remain in cold state on member or
line-card stack switches. The Cisco IOSd Software, management, and hosted
applications remain in active state and are fully programmed for wire-speed
distributed switching performance.
Q: What are the primary features introduced with the new Cisco
IOS-XE Software 3.3.0SE on the Cisco Catalyst 3650 switch?
A: Refer to release notes for Cisco IOS-XE Software 3.3.0SE. For more
details, refer to the Cisco Feature Navigator.
If you still have some issues can not be
resolved, you can onsult with our engineer, the e-mail address is as below:
You also can click in the links are as
follows to learn more detailed information:
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