Xshell Highlight Sets Cisco 'link' Instant

Here are a few conceptual designs for a "Cisco Highlight Set" feature in Xshell. Since Xshell allows custom highlighting schemes, this feature would be packaged as a pre-configured "Cisco Mode" designed specifically for network engineers.

Category 4: High-Value Data Extraction (Blue/Magenta)

Make specific numbers or IDs stand out from configuration dumps.

| Purpose | Regex Pattern | Style | | :--- | :--- | :--- | | VLAN IDs | \bVLAN\s?\d1,4\b | Magenta text | | IP Addresses | \b(?:\d1,3\.)3\d1,3\b | Blue text (Caution: can be noisy) | | MAC Addresses | [a-fA-F0-9]4\.[a-fA-F0-9]4\.[a-fA-F0-9]4 | Bright Blue text | | AS Numbers | \bAS[_\s]?\d+\b | Magenta background | xshell highlight sets cisco

Pro Tip for IP Addresses: Only enable the IP regex rule when running show ip route or show access-list. For general logs, it might highlight too many false positives (like decimal numbers). Create two separate highlight sets – one for "config review" and one for "log monitoring."

Category 2: Warnings & State Changes (Yellow/Orange)

These demand attention but don't require immediate panic. Here are a few conceptual designs for a

| Purpose | Regex Pattern | Style | | :--- | :--- | :--- | | Warning Syslog | %[A-Z]*-3- (Matches any level 3 syslog) | Yellow text, Bold | | Duplex Mismatch | duplex mismatch|auto-negotiation | Orange text | | CPU Spike | %CPU|high utilization|process= | Yellow background, Black text | | Link Flapping | link state.*?down.*?up (Regex for quick flaps) | Yellow text |

Example Use: When show process cpu history runs, the line with "75%" will not trigger, but if the text "high utilization" appears in a log, it will pop. Errors: ^%[A-Z]+-[0-9]+-

Example minimal starter set (high-impact, low CPU)

1. Errors: ^%[A-Z]+-[0-9]+-.*$ → bold red
2. Interface names: \b(?:Gi|GigabitEthernet|Fa|FastEthernet|Te|TenGigabitEthernet)\S*\b → cyan
3. Status up/down: \b(up|down|administratively down|err-disabled)\b → green (up) / red (down)
4. IPs: \b(?:\d1,3.)3\d1,3\b → magenta
5. MACs: (?:[0-9A-Fa-f]2[:-])5[0-9A-Fa-f]2 → orange

Advanced Xshell Tricks for Cisco Engineers

Beyond basic keyword highlighting, Xshell offers features that elevate your Cisco workflow.